Relevant bibliographies by topics / Dipole induced dipole

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Dipole induced dipole'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Dipole induced dipole.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Dipole induced dipole"

1

Tchieu, Andrew A., Eva Kanso, and Paul K. Newton. "The finite-dipole dynamical system." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 468, no. 2146 (May 9, 2012): 3006–26. http://dx.doi.org/10.1098/rspa.2012.0119.

Full text
Abstract:
The notion of a finite dipole is introduced as a pair of equal and opposite strength point vortices (i.e. a vortex dipole) separated by a finite distance. Equations of motion for N finite dipoles interacting in an unbounded inviscid fluid are derived from the modified interaction of 2 N independent vortices subject to the constraint that the inter-vortex spacing of each constrained dipole, ℓ, remains constant. In the absence of all other dipoles and background flow, a single dipole moves in a straight line along the perpendicular bisector of the line segment joining the two point vortices comprising the dipole, with a self-induced velocity inversely proportional to ℓ. When more than one dipole is present, the velocity of the dipole centre is the sum of the self-induced velocity and the average of the induced velocities on each vortex comprising the pair due to all the other dipoles. Each dipole orients in the direction of shear gradient based on the difference in velocities on each of the two vortices in the pair. Several numerical experiments are shown to illustrate the interactions between two and three dipoles in abreast and tandem configurations. We also show that equilibria (multi-poles) can form as a result of the interactions, and we study the stability of polygonal equilibria, showing that the N =3 case is linearly stable, whereas the N >3 case is linearly unstable.
APA, Harvard, Vancouver, ISO, and other styles
2

Zhaohui Peng, Zhaohui Peng, Chunxia Jia Chunxia Jia, Yuqing Zhang Yuqing Zhang, Zhonghua Zhu Zhonghua Zhu, and Xiaojuan Liu Xiaojuan Liu. "Multipartite entanglement generation with dipole induced transparency effect in indirectly coupled dipole-microcavity systems." Chinese Optics Letters 16, no. 8 (2018): 082702. http://dx.doi.org/10.3788/col201816.082702.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Shibata, Masayuki, and Thomas S. Kuntzleman. "Intermolecular Interactions: Dipole–Dipole, Dipole–Induced Dipole, and London Dispersion Forces." Journal of Chemical Education 86, no. 12 (December 2009): 1469. http://dx.doi.org/10.1021/ed086p1469.1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Hu, Qing, Dafei Jin, Jun Xiao, Sang Hoon Nam, Xiaoze Liu, Yongmin Liu, Xiang Zhang, and Nicholas X. Fang. "Ultrafast fluorescent decay induced by metal-mediated dipole–dipole interaction in two-dimensional molecular aggregates." Proceedings of the National Academy of Sciences 114, no. 38 (September 5, 2017): 10017–22. http://dx.doi.org/10.1073/pnas.1703000114.

Full text
Abstract:
Two-dimensional molecular aggregate (2DMA), a thin sheet of strongly interacting dipole molecules self-assembled at close distance on an ordered lattice, is a fascinating fluorescent material. It is distinctively different from the conventional (single or colloidal) dye molecules and quantum dots. In this paper, we verify that when a 2DMA is placed at a nanometric distance from a metallic substrate, the strong and coherent interaction between the dipoles inside the 2DMA dominates its fluorescent decay at a picosecond timescale. Our streak-camera lifetime measurement and interacting lattice–dipole calculation reveal that the metal-mediated dipole–dipole interaction shortens the fluorescent lifetime to about one-half and increases the energy dissipation rate by 10 times that expected from the noninteracting single-dipole picture. Our finding can enrich our understanding of nanoscale energy transfer in molecular excitonic systems and may designate a unique direction for developing fast and efficient optoelectronic devices.
APA, Harvard, Vancouver, ISO, and other styles
5

DOLTSINIS, NIKOS L., PETER J. KNOWLES, and FEDOR Y. NAUMKIN. "Induced dipole—induced dipole interactions in Ar+nclusters." Molecular Physics 96, no. 5 (March 10, 1999): 749–55. http://dx.doi.org/10.1080/00268979909483012.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Breymann, W., and R. M. Pick. "Induced dipole–induced dipole interaction: A numerical calculation." Journal of Chemical Physics 84, no. 8 (April 15, 1986): 4187–92. http://dx.doi.org/10.1063/1.450039.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Yang, Qin, and Meng Wang. "Boundary-layer noise induced by arrays of roughness elements." Journal of Fluid Mechanics 727 (June 20, 2013): 282–317. http://dx.doi.org/10.1017/jfm.2013.190.

Full text
Abstract:
AbstractSound induced by arrays of $10\times 4$ roughness elements in low-Mach-number turbulent boundary layers at ${\mathit{Re}}_{\theta } = 3065$ is studied with Lighthill’s theory and large-eddy simulation. Three roughness fetches consisting of hemispheres, cuboids and short cylinders are considered. The roughness elements of different shapes have the same height of $0. 124\delta $, the same element-to-element spacing of $0. 727\delta $ and the same flow blockage area. The acoustically compact roughness elements and their images in the wall radiate sound primarily as acoustic dipoles in the plane of wall. The dipole strength, orientation and spatial distribution show strong dependence on the roughness shape. Correlations between dipole sources associated with neighbouring elements are found to be small for these sparsely distributed roughness arrays. Correlations and coherence between roughness dipoles and surface pressure fluctuations are analysed, which reveals the importance of the impingement of upstream turbulence and surrounding vortical structures to dipole sound radiation, especially in the streamwise direction. For roughness shapes with sharp frontal edges, the edge-induced unsteady separation and reattachment also play important roles in sound generation. Large-scale turbulent structures in the boundary layer have a relatively low influence on roughness dipoles, except for the first row of elements.
APA, Harvard, Vancouver, ISO, and other styles
8

Sun, Chang Q. "Driving Force Behind the O-Rh(001) Clock Reconstruction." Modern Physics Letters B 12, no. 20 (August 30, 1998): 849–57. http://dx.doi.org/10.1142/s0217984998000974.

Full text
Abstract:
A novel rhombi-chain network is derived from low energy electron diffraction experimental observations and the recent model theory, revealing that the O-Rh(100) clock-rotation is driven by an electrostatic force arisen from bond formation. Thus the O-Rh bond suffers from tension other than compression, or strain relief. As O -1 evolves into the hybridized- O -2,a Rh 5 O cluster in the c(2 × 2) phase develops into a Rh 4 O tetrahedron and yields the overall (2 × 2)p4g reconstruction. In the (2 × 2)p4g phase, the hollow-sited O -2 defines one Rh + ion and two lone-pair-induced Rh dipoles of its four surface neighbors. The surface atomic ratio (O : Rh = 1 : 2) allocates, therefore, half of the surface Rh atoms to be the Rh dipoles and another half to play dual roles of Rh + ion and Rh dipole. Interactions along the "dipole–dipole – Rh +/dipole – Rh +/dipole" strings create the rhombi-chain at the <11> directions, and a responding bond tension confines the (2 × 2)p4g clock rotation.
APA, Harvard, Vancouver, ISO, and other styles
9

Domene, C., P. W. Fowler, P. Jemmer, and P. A. Madden. "Dipole-induced-dipole polarizabilities of symmetric clusters." Molecular Physics 98, no. 18 (September 2000): 1391–407. http://dx.doi.org/10.1080/002689700417510.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

DOLTSINIS, NIKOS L. "Induced dipole-induced dipole interactions in Ar+n clusters." Molecular Physics 96, no. 5 (March 10, 1999): 749–55. http://dx.doi.org/10.1080/002689799165134.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Dipole induced dipole"

1

Segura, Sugrañes Juan José. "Dipole-induced water adsorption on surfaces." Doctoral thesis, Universitat Autònoma de Barcelona, 2012. http://hdl.handle.net/10803/96717.

Full text
Abstract:
L'aigua és present en gairebé qualsevol superfície exposada a l'aire. Tant el vapor com l'aigua líquida modifiquen i determinen les propietats de les molècules i materials exposats a l’aire (la fricció, l'adhesió, la reactivitat, el folding ...). No obstant això, existeix una important manca de coneixement sobre com l'aigua interactua amb les superfícies a nivell sub-micromètric. Aquestes interaccions determinaran les propietats macroscòpiques de superfícies i compostos. A més d'aquests fets, l'aigua també juga un paper central en la determinació de la conformació estructural i les propietats de moltse biomolècules, com ara les proteïnes. Durant l'última dècada, s'ha parat molta atenció en l'assoliment d'una comprensió més profunda sobre com l'aigua interactua amb les proteïnes. Avui dia, l'aigua és considerada no com els medi on es troben presents les proteïnes, sinó com una part més de la pròpia proteïna. Molts estudis teòrics han estat realitzat recentment, però encara cal extreure més informació amb experiments directes. La Microscòpia de sonda de rastreig (SPM) ha obert la porta a les mesures de gran precisió en l'escala nanomètrica, que ens permeten seguir els processos i detectar propietats en escales no assolides fins recent. La Microscòpia de Forces Atòmiques (AFM) és un membre de la família SPM, amb múltiples modes d'operació capaços de detectar les diferents propietats de la superfície, que la converteixen en una eina molt versàtil. En aquest treball de tesi, he estudiat la interacció de l'aigua amb diverses superfícies, utilitzant diferents modes de AFM. L'estudi es va iniciar amb el seguiment de la interacció de l’aigua sobre la superfície de diverses cares cristal·lines en diversos aminoàcids: monocristalls de L-alanina, D-alanina, L-valina, D-valina, DL-valina i L-leucina van ser estudiats utilitzant tècniques AFM en els seus diversos modes. Aquests aminoàcids van ser triats per la seva simplicitat estructural i la seva importància en les biomolècules del cos humà. L'estudi va revelar la importància que els dipols dels aminoàcids juguen en la seva interacció amb l'aigua. Els canvis estructurals a les superfícies d'aminoàcids, com a causa de l'acció de l’aigua en ells va concloure en la descripció d’una nova superfície amb dos nivells diferenciats a la L-alanina (011). A més, la diferenciació enantiomèrica de la L i la D-valina s'ha descrit utilitzant un senzill experiment AFM. El camp elèctric generat per alguns dels cristalls dels aminoàcids ha sigut estudiat com a possible factor d’afavoriment de la congelació de l'aigua, es va estudiar l'efecte del camp elèctric natural de diversos monocristalls a les molècules d'aigua presents com a funció de la humitat relativa i la temperatura. En l'última part d'aquesta tesi, diferents capes primes de ferroelèctrics PZT2080 es van utilitzar a causa de que els seus dipols poden ser orientats mitjançant AFM en una manera controlada. He utilitzat aquestes superfícies per estudiar la influència dels dipols en l'ordenament d'aigua. Les condicions experimentals òptimes per assegurar una polarització propera al 100% d'una regió PZT2080 (utilitzant les imatges de fase de PFM com a referència) amb una injecció de càrrega mínima han sigut descrites. Les imatges KPFM van revelar diferències de desenes de mV sobre les regions polaritzades per a lleugeres disminucions de temperatura, d'una manera controlada i reproduïble.
Water is present on almost any surface exposed to air. Both vapor and liquid water modify and determine the properties of molecules and materials (friction, adhesion, folding, reactivity...). However, there is still an important lack of knowledge about how water interacts with surfaces at the sub-micrometer level. Such interactions will determine the final macroscopic properties of surfaces and compounds. In addition to these facts, water also plays a central role in determining the structural conformation and the properties of biomolecules, such as proteins. During the last decade, much attention has been driven into achieving a deeper understanding in how water interacts with proteins. Nowadays, water is considered, not as the solvent media where proteins are placed, but as a proper part of the protein itself. Many theoretical studies have been performed recently, but it is still necessary to extract more information with direct experiments. Scanning Probe Microscopy (SPM) has opened the door to powerful measures at the nanometer level that allow us to follow processes and detect properties in scales not achieved until recently. Atomic Force Microscopy (AFM) is a member of the SPM family, with multiple operational modes able to sense different surface properties, that turn it into a very versatile tool. During this thesis work, I have studied the interaction of water with several surfaces, using different AFM modes. The study began by describing how water affects different crystal surfaces of several amino acids: L-alanine, D-alanine, L-valine, D-valine, DL-Valine and L-leucine were studied by means of AFM imaging using several modes. These amino acids were chosen for their structural simplicity and their importance in the human-body biomolecules. The study revealed the importance that the amino acid dipoles play in their interaction with water. The structural changes on amino acid surfaces due to vapor and liquid water action on them have been also studied. From this study we described a new 2D landscape on the L-alanine (011) surface as a consequence of its interaction with water. Also, the enantiomeric recognition of L- and D-valine has been described in a easy experiment using AFM. The electric field generated by some amino acid crystals has been studied as a possible factor of water freezing (as reported for some amino acids at the macroscopic level). I studied the effect of the natural electric field of several crystals on the water molecules present in the media as a function of relative humidity and temperature. The importance of the dipole-dipole interactions in these processes drove me towards ferroelectric materials. In the last part of this thesis work, PZT2080 ferroelectric thin films have been used due to that their dipoles can be oriented by means of AFM in a controlled way. I have used these surfaces to study the influence of their dipoles in the ordering of water. From this study, the optimum experimental conditions to ensure a the polarization in a near a 100% effectiveness of a PZT2080 region (using its PFM phase signal as reference) with a minimum charge injection. KPFM imaging revealed differences of several tens of mV on polarized regions for slight temperature decreasing, in a controlled and reproducible manner. This demonstrates the effectiveness of the polarized regions to order the nearby water molecules when the loss of temperature decreases their thermal energy.
APA, Harvard, Vancouver, ISO, and other styles
2

Domene, Carmen. "Many-body effects in interionic interactions." Thesis, University of Exeter, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326954.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Brossard, Ludovic. "Study of light-induced dipolar interactions in cold atoms assemblies." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASO002.

Full text
Abstract:
Notre équipe étudie le comportement collectif d’un gaz d’atomes en présence d’interactions de type dipôle-dipôle. Ces interactions apparaissent lorsqu'on illumine les atomes avec un laser de longueur d’onde quasi-résonant avec une transition atomique : les atomes se polarisent sous l’effet du champ laser, et les dipôles induits interagissent entre eux via le champ qu’ils rayonnent. Cette interaction est d’autant plus forte que les atomes sont proches les uns des autres, et peut perturber considérablement le comportement radiatif de l’ensemble atomique, voire empêcher l’excitation de plusieurs atomes à la fois. Par exemple, un nuage d’atomes dense peut se comporter comme une cavité sans miroirs : le laser peut exciter certains modes de rayonnement particuliers, qui rayonnent chacun avec sa fréquence et son taux de relaxation propres, différents de ceux d’un atome individuel. Certains de ces modes collectifs sont super-radiants (le nuage réémet l’excitation emmagasinée plus rapidement que ne le ferait un atome individuel), d’autres sont au contraire sub-radiants.Afin d’étudier ces phénomènes, notre équipe a construit une expérience qui permet de piéger entre 1 et ~500 atomes froids de rubidium dans un piège laser de dimensions ~1µm³. Nous excitons les atomes près de la transition à 780 nm. La taille du nuage, de l’ordre de 100 nm, est proche de la longueur d'onde réduite. Enfin, l’élargissement Doppler des transitions atomiques est négligeable (atomes froids). La situation est donc quasi-idéale pour l’observation de modes de rayonnement collectifs. Nous avons observé expérimentalement les effets de ces interactions, mais l'accord avec la théorie ne semble être, jusqu'à présent, que qualitatif (malgré nos efforts pour nous soustraire de la structure interne des atomes).Nous avons donc décidé de construire une deuxième version du dispositif expérimental. Cette ambitieuse deuxième version dispose à présent de deux axes optiques haute résolution. En plus de résoudre certains problèmes expérimentaux présent dans la précédente version, elle ouvre la voie à de nouvelles expériences pour étudier les interactions dipolaires: nouveaux régimes de densité et nouvelles configurations atomiques comme les chaînes d'atomes
Our team studies the collective behaviour of an atomic gas in the presence of dipole-dipole interactions. These interactions appear when the atoms are illuminated by a laser of wavelength lambda that is nearly resonant with an atomic transition : the atoms are polarized by the laser field, and the induced dipoles interact with each other through the field they radiate. This interaction becomes stronger when the atoms are closer to each other, and can considerably perturb the radiative behaviour of the atomic ensemble, or even prevent the simultaneous excitation of several atoms. For instance, a dense atomic cloud can behave like an optical cavity without any mirrors : the laser can excite certain radiation modes, each with its own frequency and life time, which are different from those of an individual atom. Some of these collective modes are super-radiant (the atomic cloud re-emits the stored excitation faster than an individual atom), others are sub-radiant.In order to study these phenomena, our team has built an experiment that allows the trapping of 1 up to ~500 cold rubidium atoms in a laser trap of ~1µm³ in size. We excite the atoms close to the transition at 780nm. The size of the atomic cloud, on the order of 100 nm, is close to the reduced wavelength. Also, the Doppler broadening of the atomic transition is negligible (cold atoms). The situation is therefore nearly ideal for the observation of the collective radiation modes. We observed the effects of these interactions, but no quantitative agreement with theory has been obtained so far (despite our efforts to simplify the internal atomic structure).We have thus decided to build a second version of the experimental apparatus. This challenging second version now possesses two high resolution optical axes. Not only solving some experimental problems of the previous version, it opens the road to new kind of experiments to study dipolar interactions: new regime of densities and new kind of geometries, as 1D chain of atoms for instance
APA, Harvard, Vancouver, ISO, and other styles
4

Hood, Lon L., David L. Mitchell, Robert P. Lin, Mario H. Acuna, and Alan B. Binder. "Initial measurements of the lunar induced magnetic dipole moment using Lunar Prospector Magnetometer data." AMER GEOPHYSICAL UNION, 1999. http://hdl.handle.net/10150/624011.

Full text
Abstract:
Twenty-one orbits of Lunar Prospector magnetometer data obtained during an extended passage of the Moon through a lobe of the geomagnetic tail in April 1998 are applied to estimate the residual lunar induced magnetic dipole moment. Editing and averaging of individual orbit segments yields a negative induced moment with amplitude −2.4 ±1.6 × 1022 Gauss-cm³ per Gauss of applied field. Assuming that the induced field is caused entirely by electrical currents near the surface of a highly electrically conducting metallic core, the preferred core radius is 340±90 km. For an iron-rich composition, such a core would represent 1 to 3% of the lunar mass.
APA, Harvard, Vancouver, ISO, and other styles
5

Beck, Philipp [Verfasser], and H. R. [Akademischer Betreuer] Trebin. "Molecular dynamics of metal oxides with induced electrostatic dipole moments / Philipp Beck. Betreuer: H.-R. Trebin." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2013. http://d-nb.info/1031191127/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Moch, Paul [Verfasser], Martin [Akademischer Betreuer] Beneke, and Andreas [Akademischer Betreuer] Weiler. "Loop-induced lepton and quark dipole transitions in Randall-Sundrum models / Paul Moch. Betreuer: Martin Beneke. Gutachter: Andreas Weiler ; Martin Beneke." München : Universitätsbibliothek der TU München, 2015. http://d-nb.info/1081768010/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Puthumpally, Joseph Raijumon. "Quantum Interferences in the Dynamics of Atoms and Molecules in Electromagnetic Fields." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS035/document.

Full text
Abstract:
Les interférences quantiques apparaissant lors de la superposition cohérente d'états quantiques de la matière sont à l'origine de la compréhension et du contrôle de nombreux processus élémentaires. Dans cette thèse, deux problèmes distincts, qui ont pour origine de tels effets, sont discutés avec leurs applications potentielles : 1. Diffraction électronique induite par Laser (LIED) et imagerie des orbitales moléculaires ; 2. Effets collectifs dans des vapeurs denses et transparence électromagnétique induite par interaction dipôle-dipôle (DIET). La première partie de cette thèse traite du mécanisme de recollision dans des molécules linéaires simples lorsque le système est exposé à un champ laser infrarouge de forte intensité. Cette interaction provoque une ionisation tunnel du système moléculaire, conduisant à la création d'un paquet d'ondes électronique dans le continuum. Ce paquet d'ondes suit une trajectoire oscillante, dirigée par le champ laser. Cela provoque une collision avec l'ion parent qui lui a donné naissance. Ce processus de diffraction peut être de nature inélastique, engendrant la génération d'harmoniques d'ordre élevé (HHG) ou l'ionisation double non-séquentielle, ou de nature élastique, processus que l'on appelle généralement « diffraction électronique induite par laser ». La LIED porte des informations sur la molécule et sur l'état initial à partir duquel les électrons sont arrachés sous forme de motifs de diffraction formés en raison de l'interférence entre différentes voies de diffraction. Dans ce projet, une méthode est développée pour l'imagerie des orbitales moléculaires, reposant sur des spectres de photo-électrons obtenus par LIED. Cette méthode est basée sur le fait que la fonction d'ondes du continuum conserve la mémoire de l'objet à partir duquel elle a été diffractée. Un modèle analytique basé sur l'approximation de champ fort (SFA) est développé pour des molécules simples linéaires et appliqué aux orbitales moléculaires HOMO et HOMO-1 du dioxyde de carbone. L'interprétation et l'extraction des informations orbitalaires imprimées dans les spectres de photo-électrons sont présentées en détail. Par ailleurs, nous estimons que ce type d'approche pourrait être étendu à l'imagerie de la dynamique électro-nucléaire de tels systèmes. La deuxième partie de cette thèse traite des effets collectifs dans des vapeurs atomiques ou moléculaires denses. L'action de la lumière sur ces gaz crée des dipôles induits qui oscillent et produisent des ondes électromagnétiques secondaires. Lorsque les particules constitutives du gaz sont assez proches, ces ondes secondaires peuvent coupler les dipôles induits entre-eux, et lorsque cette corrélation devient prépondérante la réponse du gaz devient une réponse collective. Ceci conduit à des effets spécifiques pour de tels systèmes, comme l'effet Dicke, la superradiance, et les décalages spectraux de Lorentz-Lorenz ou de Lamb. A cette liste d'effets collectifs, nous avons ajouté un effet de transparence induite dans l'échantillon. Cet effet collectif a été appelé « transparence électromagnétique induite par interaction dipôle-dipôle ». La nature collective de l'excitation du gaz dense réduit la vitesse de groupe de la lumière transmise à quelques dizaines de mètre par seconde, créant ainsi une lumière dite « lente ». Ces effets sont démontrés pour les transitions D1 du 85Rb et d'autres applications potentielles sont également discutées
Quantum interference, coherent superposition of quantum states, are widely used for the understanding and engineering of the quantum world. In this thesis, two distinct problems that are rooted in quantum interference are discussed with their potential applications: 1. Laser induced electron diffraction (LIED) and molecular orbital imaging, 2. Collective effects in dense vapors and dipole induced electromagnetic transparency (DIET). The first part deals with the recollision mechanism in molecules when the system is exposed to high intensity infrared laser fields. The interaction with the intense field will tunnel ionize the system, creating an electron wave packet in the continuum. This wave packet follows an oscillatory trajectory driven by the laser field. This results in a collision with the parent ion from which the wave packet was formed. This scattering process can end up in different channels including either inelastic scattering resulting in high harmonic generation (HHG) and non-sequential double ionization, or elastic scattering often called laser induced electron diffraction. LIED carries information about the molecule and about the initial state from which the electron was born as diffraction patterns formed due to the interference between different diffraction pathways. In this project, a method is developed for imaging molecular orbitals relying on scattered photoelectron spectra obtained via LIED. It is based on the fact that the scattering wave function keeps the memory of the object from which it has been scattered. An analytical model based on the strong field approximation (SFA) is developed for linear molecules and applied to the HOMO and HOMO-1 molecular orbitals of carbon dioxide. Extraction of orbital information imprinted in the photoelectron spectra is presented in detail. It is anticipated that it could be extended to image the electro-nuclear dynamics of such systems. The second part of the thesis deals with collective effects in dense atomic or molecular vapors. The action of light on the vapor samples creates dipoles which oscillate and produce secondary electro-magnetic waves. When the constituent particles are close enough and exposed to a common exciting field, the induced dipoles can affect one another, setting up a correlation which forbids them from responding independently towards the external field. The result is a cooperative response leading to effects unique to such systems which include Dicke narrowing, superradiance, Lorentz-Lorenz and Lamb shifts. To this list of collective effects, one more candidate has been added, which is revealed during this study: an induced transparency in the sample. This transparency, induced by dipole-dipole interactions, is named “dipole-induced electromagnetic transparency”. The collective nature of the dense vapor excitation reduces the group velocity of the transmitted light to a few tens of meter per second resulting in 'slow' light. These effects are demonstrated for the D1 transitions of 85Rb and other potential applications are also discussed
APA, Harvard, Vancouver, ISO, and other styles
8

Garcia, Juan Fernandez. "Ion Mobility-Mass Spectrometry Measurements and Modeling of the Electrical Mobilities of Charged Nanodrops in Gases| Relation between Electrical Mobility, Size, and Charge, and Effect of Ion-Induced Dipole Interactions." Thesis, Yale University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=3663632.

Full text
Abstract:

Over recent years, Ion Mobility–Mass Spectrometry (IMS–MS) measurements have become a widely used tool in a number of disciplines of scientific relevance, including, in particular, the structural characterization of mass-selected biomolecules such as proteins, peptides, or lipids, brought into the gas-phase using a variety of ionization methods. In these structural studies, the measured electrical mobilities are customarily interpreted in terms of a collision cross-section, based on the classic kinetic theory of ion mobility. For ideal ions interacting as smooth, rigid-elastic hard-spheres with also-spherical gas molecules, this collision cross-section (CCS) is identical to the true, geometric cross section. On the other hand, for real ions with non-perfectly spherical geometries and atomically-rough surfaces, subject to long-range interactions with the gas molecules, the expression for the CCS can become fairly intricate.

This complexity has frequently led to the use of helium as the drift gas of choice for structural studies, given its small size and mass, its low polarizability (minimizing long-range interactions), and its sphericity and lack of internal degrees of freedom, all of which contribute to reduce departures between measured and true cross-sections. Recently, however, a growing interest has arisen for using moderately-polarizable gases such as air, nitrogen, or carbon dioxide (among others) in these structural studies, due to a number of advantages they present over helium, including their higher breakdown voltages (allowing for higher instrument resolutions) and better pumping characteristics. This shift has, nevertheless, remained objectionable in the eye of those seeking to infer accurate structural information from ion mobility measurements and, accordingly, there is a critical need to study whether or not measurements carried out in such gases may be corrected for the finite size of the gas molecules and their long-range interactions with the ions, in order to provide cross-sections truly representative of ion geometry. A first step to address this matter is undertaken here for the special case of nearly-spherical, nanometer-sized ions.

In order to attain this goal, we have performed careful and accurate IMS–MS measurements of hundreds of electrospray-generated nanodrops of the ionic liquid (IL) 1-ethyl-3-methylimidazolium tetrafluoroborate (EMI-BF 4), in a variety of drift gases (air, CO2, and argon), covering a wide range of temperatures (20-100 °C, for both air and CO2), and considering nanodrops of both positive and negative polarity (the latter in room-temperature air only). Thanks to the combined measurement of the mass and mobility of these nanodrops, we are able to simultaneously determine a mobility-based collision cross-section and a mass-based diameter (taking into account the finite compressibility of the IL matter) for each of them, which then allows us to establish a comparison between the two.

Over the entire range of experimental conditions investigated, our measurements show that the electrical mobilities of these nearly-spherical, multiply-charged IL nanodrops are accurately described by an adapted version of the well-known Stokes—Millikan (SM) law for the mobility of spherical ions, with the nanodrop diameter augmented by an effective gas-molecule collision diameter, and including a correction factor to account for the effect of ion—induced dipole (polarization) interactions, which result in the mobility decreasing linearly with the ratio between the polarization and thermal energies of the ion–neutral system at contact. The availability of this empirically-validated relation enables us, in turn, to determine true, geometric cross-sections for globular ions from IMS—MS measurements performed in gases other than helium, including molecular or atomic gases with moderate polarizabilities. In addition, the observed dependence of the experimentally-determined values for the effective gas-molecule collision diameter and the parameters involved in the polarization correction on drift-gas nature, temperature, and nanodrop polarity, is further evaluated in the light of the results of numerical calculations of the electrical mobilities, in the free-molecule regime, of spherical ions subject to different types of scattering with the gas molecules and interacting with the latter under an ion–induced dipole potential. Among the number of findings derived from this analysis, a particularly notable one is that nanodrop–neutral scattering seems to be of a diffuse (cf. elastic and specular) character in all the scenarios investigated, including the case of the monatomic argon, which therefore suggests that the atomic-level surface roughness of our nanodrops and/or the proximity between their internal degrees of freedom, rather than the sphericity (or lack of it) and the absence (or presence) of internal degrees of freedom in the gas molecules, are what chiefly determine the nature of the scattering process.

APA, Harvard, Vancouver, ISO, and other styles
9

Zipkes, Christoph. "A trapped single ion inside a Bose-Einstein condensate." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/241264.

Full text
Abstract:
In recent years, improved control of the motional and internal quantum states of ultracold neutral atoms and ions has opened intriguing possibilities for quantum simulation and quantum computation. Many-body effects have been explored with hundreds of thousands of quantum-degenerate neutral atoms and coherent light-matter interfaces have been built. Systems of single or a few trapped ions have been used to demonstrate universal quantum computing algorithms and to detect variations of fundamental constants in precision atomic clocks. Now in our experiment we investigate how the two systems can be advantageously combined. We immerse a single trapped Yb+ ion in a Bose-Einstein condensate of Rb atoms. Our hybrid setup consists of a linear RF-Paul trap which is overlapped with a magnetic trap and an optical dipole trap for the neutral atoms. A first synergetic effect is the sympathetic cooling of the trapped ions to very low temperatures through collisions with the ultracold neutral gas and thus without applying laser light to the ions. We observe the dynamics of this effect by measuring the mean ion energy after having an initially hot ion immersed into the condensate for various interaction times, while at the same time monitoring the effects of the collisions on the condensate. The observed ion cooling effect calls for further research into the possibility of using such hybrid systems for the continuous cooling of quantum computers. To this end a good understanding of the fundamental interaction processes between the ion and the neutrals is essential. We investigate the energy dependent elastic scattering properties by measuring neutral atom losses and temperature increase from an ultracold thermal cloud of Rb. By comparison with a Monte-Carlo simulation we gain a deeper understanding of how the different parameters affect the collisional effects. Additionally, we observe charge exchange reactions at the single particle level and measure the energy-independent reaction rate constants. The reaction products are identified by in-trap mass spectrometry, revealing the branching ratio between radiative and non-radiative charge exchange processes.
APA, Harvard, Vancouver, ISO, and other styles
10

Shen, Jianqi. "Quantum Coherence and Quantum-Vacuum Effects in Some Artificial Electromagnetic Media." Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10074.

Full text
Abstract:
The author of this thesis concentrates his attention on quantum optical properties of some artificial electromagnetic media, such as quantum coherent atomic vapors (various multilevel electromagnetically induced transparency vapors) and negative refractive index materials, and suggests some possible ways to manipulate wave propagations inside the artificial electromagnetic materials based on quantum coherence and quantum vacuum effects. In Chapters 1 and 2, the author reviews the previous papers on quantum coherence as well as the relevant work such as electromagnetically induced transparency (EIT), atomic population trapping and their various applications. The basic concepts of quantum coherence (atomic phase coherence, quantum interferences within atomic energy levels) and quantum vacuum are introduced, and the theoretical formulations for treating wave propagations in quantum coherent media are presented. In Chapter 3, the author considers three topics on the manipulation of light propagations via quantum coherence and quantum interferences: i) the evolutional optical behaviors (turn-on dynamics) of a four-level N-configuration atomic system is studied and the tunable optical behavior that depends on the intensity ratio of the signal field to the control field is considered. Some typical photonic logic gates (e.g. NOT and NOR gates) are designed based on the tunable four-level optical responses of the N-configuration atomic system; ii) the destructive and constructive quantum interferences between two control transitions (driven by the control fields) in a tripod-type four-level system is suggested. The double-control quantum interferences can be utilized to realize some photonic devices such as the logic-gate devices, e.g., NOT, OR, NOR and EXNOR gates; iii) some new quantum coherent schemes (using EIT and dressed-state mixed-parity transitions) for realizing negative refractive indices are proposed. The most remarkable characteristic (and advantage) of the present scenarios is such that the isotropic left-handed media (with microscopic structure units at the atomic level) in the optical frequency band can be achieved. Quantum vacuum (the ground state of quantized fields) can exhibit many interesting effects. In Chapter 4, we investigate two quantum-vacuum effects in artificial materials: i) the anisotropic distribution of quantum-vacuum momentum density in a moving electromagnetic medium; ii) the angular momentum transfer between quantum vacuum and anisotropic medium. Such quantum-vacuum macroscopic mechanical effects could be detected by current technology, e.g., the so-called fiber optical sensor that can measure motion with nanoscale sensitivity. We expect that these vacuum effects could be utilized to develop sensitive sensor techniques or to design new quantum optical and photonic devices.In Chapter 5, the author suggests some interesting effects due to the combination of quantum coherence and quantum vacuum, i.e., the quantum coherent effects, in which the quantum-vacuum fluctuation field is involved. Two topics are addressed: i) spontaneous emission inhibition due to quantum interference in a three-level system; ii) quantum light-induced guiding potentials for coherent manipulation of atomic matter waves (containing multilevel atoms). These quantum guiding potentials could be utilized to cool and trap atoms, and may be used for the development of new techniques of atom fibers and atom chips, where the coherent manipulation of atomic matter waves is needed.In Chapter 6, we conclude this thesis with some remarks, briefly discuss new work that deserves further consideration in the future, and present a guide to the previously published papers by us.
QC 20100810
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Dipole induced dipole"

1

Booth, Ceri. Recognition-induced acceleration of a 1,3-dipolar cycloaddition. Birmingham: University of Birmingham, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

George, Birnbaum, ed. Phenomena induced by intermolecular interactions. New York: Plenum Press, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Cheyne, Douglas O., and Andrew C. Papanicolaou. Magnetoencephalography and Magnetic Source Imaging. Edited by Andrew C. Papanicolaou. Oxford University Press, 2015. http://dx.doi.org/10.1093/oxfordhb/9780199764228.013.6.

Full text
Abstract:
This chapter focuses on magnetoencephalography (MEG) used in brain imaging and its use in localizing the brain sources of externally recorded spontaneous activity and stimulus and task –induced activation. The chapter first describes the instruments used for recording the magnetoencephalographic signals and the neurogenesis of these signals. It then considers proposed solutions for the “inverse” problem and describes approaches for MEG source estimation, including a method that specifies only one or many equivalent current dipoles. It also explains the signal source-localizing technique known as beamforming and concluding with a discussion of practical issues in MEG/MSI, with emphasis on those arising in clinical applications of the method.
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Dipole induced dipole"

1

Gooch, Jan W. "Induced Dipole." In Encyclopedic Dictionary of Polymers, 901. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_14018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Cherepanov, Victor N., Yulia N. Kalugina, and Mikhail A. Buldakov. "Interaction-induced Dipole Moment." In SpringerBriefs in Molecular Science, 17–50. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-49032-8_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Karedla, Narain. "Single-Molecule Transition Dipole Imaging." In Single-Molecule Metal-Induced Energy Transfer, 87–143. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-60537-1_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Moraldi, Massimo, and Lothar Frommhold. "Irreducible Three-Body Dipole Moments in Hydrogen." In Collision- and Interaction-Induced Spectroscopy, 41–50. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0183-7_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Meyer, Wilfried. "Ab Initio Calculations of Collision Induced Dipole Moments." In Phenomena Induced by Intermolecular Interactions, 29–48. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2511-6_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Ryckbosch, D., E. Van Camp, R. Van de Vyver, P. Berkvens, E. Kerkhove, P. Van Otten, and H. Ferdinande. "Isospin Mixing During the Decay of the Giant Dipole Resonance." In Neutron Induced Reactions, 182–87. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4636-1_22.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Szefliński, Z. "Verification of the Brink Hypothesis - Giant Dipole Resonances Built on Excited States." In Neutron Induced Reactions, 275–90. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4636-1_28.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ordonez, Andres F., and Olga Smirnova. "Inducing Enantiosensitive Permanent Multipoles in Isotropic Samples with Two-Color Fields." In Molecular Beams in Physics and Chemistry, 335–52. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63963-1_16.

Full text
Abstract:
AbstractWe find that two-color fields can induce field-free permanent dipoles in initially isotropic samples of chiral molecules via resonant electronic excitation in a one-$$3\omega $$ 3 ω -photon versus three-$$\omega $$ ω -photons scheme. These permanent dipoles are enantiosensitive and can be controlled via the relative phase between the two colors. When the two colors are linearly polarized perpendicular to each other, the interference between the two pathways induces excitation sensitive to the molecular handedness and orientation, leading to uniaxial orientation of the excited molecules and to an enantio-sensitive permanent dipole perpendicular to the polarization plane. We also find that although a corresponding one-$$2\omega $$ 2 ω -photon versus two-$$\omega $$ ω -photons scheme cannot produce enantiosensitive permanent dipoles, it can produce enantiosensitive permanent quadrupoles that are also controllable through the two-color relative phase.
APA, Harvard, Vancouver, ISO, and other styles
9

Niikura, Hiromichi, P. B. Corkum, and D. M. Villeneuve. "Coherent cooling of molecular vibrational motion with laser-induced dipole forces." In Springer Series in Chemical Physics, 855–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-27213-5_260.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Perfetti, P., C. Quaresima, C. Coluzza, C. Fortunato, and G. Margaritondo. "Dipole-Induced Changes of the Band Discontinuities at the SiO2-Si Interface." In Electronic Structure of Semiconductor Heterojunctions, 325–28. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3073-5_38.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Dipole induced dipole"

1

Donkor, Eric. "Quantum computing with induced dipole-dipole forbidden transitions." In SPIE Defense, Security, and Sensing, edited by Eric Donkor, Andrew R. Pirich, and Howard E. Brandt. SPIE, 2011. http://dx.doi.org/10.1117/12.884501.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kaur, Maninder, and Mahmood Mian. "Induced dipole-dipole coupling between two atoms at a migration resonance." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5033235.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Jaramillo Correa, Camilo. "Generalized Donkor model with induced dipole-dipole forbidden transitions using Maple." In SPIE Defense, Security, and Sensing. SPIE, 2012. http://dx.doi.org/10.1117/12.918407.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Atakaramians, Shaghik, Andrey E. Miroshnichenko, Ilya V. Shadrivov, Tanya M. Monro, Yuri S. Kivshar, and Shahraam V. Afshar. "Dipole-fiber systems: radiation field patterns, effective magnetic dipoles, and induced cavity modes." In SPIE Micro+Nano Materials, Devices, and Applications, edited by Benjamin J. Eggleton and Stefano Palomba. SPIE, 2015. http://dx.doi.org/10.1117/12.2204783.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ohki, Hiroshi, Taku Izubuchi, Michael Abramczyk, Tom Blum, and Sergey Syritsyn. "Calculation of Nucleon Electric Dipole Moments Induced by Quark Chromo-Electric Dipole Moments." In 34th annual International Symposium on Lattice Field Theory. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.256.0398.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Cong, Longqing, Yogesh Kumar Srivastava, and Ranjan Singh. "Spin induced toroidal dipole in terahertz metasurfaces." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2017. http://dx.doi.org/10.1364/cleo_at.2017.jtu5a.37.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Furman, W. I. "Dipole photon strength functions from neutron induced reactions." In Workshop on Photon Strength Functions and Related Topics. Trieste, Italy: Sissa Medialab, 2008. http://dx.doi.org/10.22323/1.044.0013.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Donkor, Eric, Ryan Williams, and Fahad Althowibi. "Induced dipole-dipole forbidden transitions in rare-earth elements and their prospects for quantum information processing." In SPIE Sensing Technology + Applications, edited by Eric Donkor, Andrew R. Pirich, and Michael Hayduk. SPIE, 2015. http://dx.doi.org/10.1117/12.2087025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Rodarte, Enrique, and Norman Miller. "Flow-Induced Noise From Short Aspect Ratio Cylinders Inside a Rectangular Duct." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33409.

Full text
Abstract:
Flow-induced tonal noise and acoustic resonance problems are found in a variety of applications that range from nuclear power plant heat exchangers to automobile air conditioning evaporators. This tonal component of noise can be associated with the fluctuating forces produced in bluff bodies when subject to flow. Fluctuating forces can be represented as acoustic dipoles [Blake]. An acoustic model based on the inhomogeneous convected Helmholtz equation with a point dipole source term, volumetric damping and damping at the duct walls was used in conjunction with experimental measurements to study the acoustic field produced by short aspect ratio cylinders inside a rectangular duct with flow. The model was able to predict the acoustic field produced by the cylinders once an appropriate fluctuating lift coefficient was estimated and employed. Fluctuating lift coefficients found using the model and an optimization procedure were in reasonable agreement with results reported in the literature.
APA, Harvard, Vancouver, ISO, and other styles
10

Straatsma, C. J. E., C. A. Baron, M. Egilmez, K. H. Chow, J. Jung, and A. Y. Elezzabi. "Terahertz plasmon-induced dipole emission from a Schottky barrier." In Conference on Lasers and Electro-Optics. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/cleo.2010.jwa108.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Dipole induced dipole"

1

Trenholme, J. Effects of a Nonlinear Induced Electric Dipole Moment at 1w. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1165811.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chu, Pinghan, Young Jin Kim, and Igor Mykhaylovych Savukov. Search for an axion-induced oscillating electric dipole moment for electrons using atomic magnetometers. Office of Scientific and Technical Information (OSTI), October 2019. http://dx.doi.org/10.2172/1569722.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gupta, R., P. Thompson, and P. Wanderer. A review of the saturation induced harmonics in the 80 mm aperture RHIC arc dipole magnets. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/7252349.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gupta, R., P. Thompson, and P. Wanderer. A review of the saturation induced harmonics in the 80 mm aperture RHIC arc dipole magnets. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/10179020.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Gupta, R., P. Thompson, and p. Wanderer. A Review of the Saturation Induced Harmonics in the 80 mm Aperture RHIC Arc Dipole Magnets. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/1119367.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Meth, M. Spectrum analysis of the power line flicker induced by the electrical test of the prototype Booster dipole. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/7037862.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Meth, M. Spectrum analysis of the power line flicker induced by the electrical test of the prototype Booster dipole. Office of Scientific and Technical Information (OSTI), February 1987. http://dx.doi.org/10.2172/1150454.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Meth, M. Spectrum analysis of the power line flicker induced by the electrical test of the prototype Booster dipole. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/10167971.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Dipole induced dipole' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography