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Dissertations / Theses on the topic 'Quantum electrodynamic theory'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Branch, Jane Varpu. "Transport studies of the integer and fractional quantum Hall effects." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276529.

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Jentschura, Ulrich [Verfasser]. "Quantum Electrodynamic Bound-State Calculations and Large-Order Perturbation Theory / Ulrich Jentschura." Aachen : Shaker, 2003. http://d-nb.info/1174514426/34.

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3

Jentschura, Ulrich D. [Verfasser]. "Quantum Electrodynamic Bound-State Calculations and Large-Order Perturbation Theory / Ulrich Jentschura." Aachen : Shaker, 2003. http://nbn-resolving.de/urn:nbn:de:101:1-2018123004421660355078.

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4

Jentschura, Ulrich D. [Verfasser]. "Quantum electrodynamic bound state calculations and large order perturbation theory / by Ulrich Jentschura." Aachen : Shaker, 2003. http://d-nb.info/968750435/34.

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5

Cakir, Halil [Verfasser], and Zoltán [Akademischer Betreuer] Harman. "Quantum Electrodynamic Theory of Few-Electron Highly Charged Ions / Halil Cakir ; Betreuer: Zoltán Harman." Heidelberg : Universitätsbibliothek Heidelberg, 2020. http://d-nb.info/1213902452/34.

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6

Zhang, Ou, and Ou Zhang. "Effective Field Theories for Quantum Chromo- and Electrodynamics." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/621825.

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Effective field theories (EFTs) provide frameworks to systematically improve perturbation expansions in quantum field theory. This improvement is essential in quantum chromodynamics (QCD) predictions, both at low energy in the description of low momentum hadron-hadron scattering and at high energy in the description of electron-positron, proton-proton, proton-electron collisions. It is also important in quantum electrodynamics (QED), when electrons interact with a high-intensity, long-wavelength classical field. I introduce the principles and methods of effective field theory and describe my w

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7

Jenkins, Stewart David. "Theory of light -atomic ensemble interactions entanglement, storage, and retrieval /." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-09252006-175848/.

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Thesis (Ph. D.)--Physics, Georgia Institute of Technology, 2007.<br>Kennedy, T. A. Brian, Committee Chair ; Kuzmich, Alex, Committee Member ; Chapman, Michael S., Committee Member ; Raman, Chandra, Committee Member ; Morley, Thomas D., Committee Member.

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8

Roulstone, Ian. "Twister theory and the infrared problems of classical fields." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259829.

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9

Jentschura, Ulrich. "Quantum Electrodynamic Bound-State Calculations and Large-Order Perturbation Theory. - (This manuscript is also available - in the form of a book - from Shaker Verlag GmbH, Postfach 101818, 52018 Aachen, Germany world-wide web address: http://www.shaker.de, electronic-mail address: info@shaker.de. It has been posted on the web sites of Dresden University of Technology with the permission of the publisher.)." Doctoral thesis, Technische Universität Dresden, 2002. https://tud.qucosa.de/id/qucosa%3A24235.

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The accurate calculation of atomic spectra, including radiative corrections, is one of the rather challenging tasks in theoretical physics. The entire formalism of quantum (gauge) field theory, augmented by the difficulties of the bound-state formalism, is needed for an accurate understanding of the relevant physics at the level of current high-precision spectroscopy. In this thesis, several calculations in this area are described in detail. Investigations on large-order perturbation-theory effects (and predictive limits of perturbation theory) supplement these investigations. In the context o

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10

Elliott, Matthew. "Theory of nonclassical photonic states in driven-dissipative circuit quantum electrodynamics." Thesis, University of Surrey, 2017. http://epubs.surrey.ac.uk/841210/.

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Superconducting circuits provide an architecture upon which cavity quantum electrodynamics (QED) can be implemented at microwave frequencies in a highly tunable environment. Known as circuit QED, these systems can achieve larger nonlinearities, stronger coupling and greater controllability than can be achieved in cavity QED, all in a customisable, solid state device, making this technology an exciting test bed for both quantum optics and quantum information processing. These new parameter regimes open up new avenues for quantum technology, while also allowing older quantum optics results to fi

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11

Allcock, Philip. "A microscopic quantum electrodynamical theory of novel nonlinear optical processes." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338097.

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12

Jentschura, Ulrich. "Quantum Electrodynamic Bound-State Calculations and Large-Order Perturbation Theory. - (This manuscript is also available - in the form of a book - from Shaker Verlag GmbH, Postfach 101818, 52018 Aachen, Germany world-wide web address: http://www.shaker.de, electronic-mail address: info@shaker.de. It has been posted on the web sites of Dresden University of Technology with the permission of the publisher.)." Aachen : Shaker, 2003. http://deposit.d-nb.de/cgi-bin/dokserv?idn=968750435.

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13

Kim, Soo Y. "Cold single atoms for cavity QED experiments." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26581.

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Thesis (Ph.D)--Physics, Georgia Institute of Technology, 2009.<br>Committee Chair: Chapman, Michael; Committee Member: Citrin, David; Committee Member: Kennedy, T. A. Brian; Committee Member: Kuzmich, Alexander; Committee Member: Raman, Chandra. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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14

Weidt, Sebastian. "Towards microwave based ion trap quantum technology." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48893/.

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Scalability is a challenging yet key aspect required for large scale quantum computing and simulation using ions trapped in radio-frequency (rf) Paul traps. In this thesis 171Yb+ ions are used to demonstrate a magnetic field insensitive qubit which has a measured coherence time of 1.5 s, making it an ideal candidate to use for storing quantum information. A magnetic field sensitive qubit is also characterised which can be used for the implementation of multi-qubit gates using a potentially very scalable scheme based on microwaves in conjunction with a static magnetic field gradient instead of

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15

Gray, Norman. "Dimensionally regulated on-shell renormalisation in QCD and QED." Thesis, n.p, 1991. http://oro.open.ac.uk/19423/.

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16

Gagnon, Jean-Sébastien. "Leading order calculation of transport coefficients in hot quantum electrodynamics from diagrammatic methods." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103198.

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We compute the electrical conductivity and shear viscosity at leading order in hot Quantum Electrodynamics. Starting from the Kubo relation for electrical conductivity and shear viscosity, we use diagrammatic methods to write down the appropriate integral equations for bosonic and fermionic effective vertices. We also show how Ward identities can be used to put constraints on these integral equations. One of our main results is an equation relating the kernels of the integral equations with functional derivatives of the full self-energy; it is similar to what is obtained with two-particle-irre

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17

Jenkins, Robert David. "Higher order energy transfer : quantum electrodynamical calculations and graphical representation." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327601.

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18

Lapitski, Denis. "Development of the Quantum Lattice Boltzmann method for simulation of quantum electrodynamics with applications to graphene." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:e89cd11b-da2c-4c34-be9f-7b3d711e2e64.

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We investigate the simulations of the the Schrödinger equation using the onedimensional quantum lattice Boltzmann (QLB) scheme and the irregular behaviour of solution. We isolate error due to approximation of the Schrödinger solution with the non-relativistic limit of the Dirac equation and numerical error in solving the Dirac equation. Detailed analysis of the original scheme showed it to be first order accurate. By discretizing the Dirac equation consistently on both sides we derive a second order accurate QLB scheme with the same evolution algorithm as the original and requiring only a one-

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19

Henkel, Carsten. "Coherence theory of atomic de Broglie waves and electromagnetic near fields." Thesis, [S.l. : s.n.], 2004. http://pub.ub.uni-potsdam.de/2004/0027/henkel.pdf.

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Fukuda, Masahiro. "Theoretical Studies of Quantum Electrodynamics for Local Picture of Electron Spin and Time-evolution Simulation Method of Operators." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215962.

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21

Schäfer, Christian [Verfasser], and Angel [Akademischer Betreuer] Rubio. "On the interface of quantum electrodynamics and electronic structure theory : Cavity QED / Christian Schäfer ; Betreuer: Angel Rubio." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2020. http://d-nb.info/1214370543/34.

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22

Popescu, Adrian. "Carbon Nanotubes Interactions: Theory and Applications." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3294.

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A theoretical framework describing the carbon nanotubes interaction, involving two distinct approaches, is presented. Based on the results obtained practical applications using carbon nanotubes are further proposed. First a classical approach is employed for different geometrical configurations, such as parallel or concentric carbon nanotubes. For all the cases analytical expressions for the systems potential energies are derived. The results obtained using the classical approach are used to propose a few practical applications. These applications include a non-contact device for profiling sur

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23

Corson, John Purvis. "Photoemission from a Laser-Driven Electron Wave Packet." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/3040.

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We use quantum electrodynamics (QED) to investigate the possibility of radiative interference from a single laser-driven electron wave packet. Intuition gleaned from classical electrodynamics suggests that radiation from a large electron wave packet might interfere destructively when different regions of the packet oscillate out of phase with each other. We show that when the incident light is represented with a multi-mode coherent state, the relative phases of the electron's constituent momenta have no influence of the amount of scattered light. Hence, the radiation does not depend on the amo

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24

Sars, Matthias Christiaan Bernhard. "Parametric representation of Feynman amplitudes in gauge theories." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17302.

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In dieser Arbeit wird eine systematische Methode gegeben um die Amplituden in (skalarer) Quantenelektrodynamik und nicht-Abelsche Eichtheorien in Schwinger-parametrische Form zu schreiben. Dies wird erreicht in dem der Zähler der Feynmanregeln im Impulsraum in einem Differentialoperator umgewandelt wird. Dieser Differentialoperator wirkt dann auf den parametrichen Integranden der skalaren Theorie. Für die QED ist das am einfachsten, weil die Leibnizregel hier nicht nötig ist. Im Fall der sQED und den nicht-Abelsche Eichtheorien stehen die Beiträge der Leibnizregel in Verbindung mit 4-valente

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Beltran, Ramirez Jhosep Victorino. "On equivalence of scalar quantum electrodynamics via Duffin-Kemmer-Petiau and Klein-Gordon-Fock formalism using causal perturbation theory approach /." São Paulo, 2018. http://hdl.handle.net/11449/153869.

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Orientador: Bruto Max Pimentel Escobar<br>Banca: Edmundo Capelas de Oliveira<br>Banca: Julio Marny Hoff da Silva<br>Banca: Pedro José Pompeia<br>Banca: Rodrigo Rocha Cuzinatto<br>Resumo: Nesta tese utilizamos a teoria de perturbação causal para estudar a eletrodinâmica quântica escalar com os campos de Duffin-Kemmer-Petiau. Determinamos as seções de choque diferenciais no nível da árvore, o tensor de polarização do vácuo, a função de auto energia e a renormalizabilidade da teoria. Depois disso, comparamos nossos resultados com os obtidos através dos campos de Klein-Gordon-Fock, determinando qu

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Beltrán, Ramirez Jhosep Victorino. "On equivalence of scalar quantum electrodynamics via Duffin-Kemmer-Petiau and Klein-Gordon-Fock formalism using causal perturbation theory approach." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153869.

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Submitted by Jhosep Victorino Beltrán Ramirez (jhosep@ift.unesp.br) on 2018-04-30T23:53:58Z No. of bitstreams: 1 Thesis final version.pdf: 1232865 bytes, checksum: 9c45a7f2b11fb5626fc2289be640684d (MD5)<br>Rejected by Hellen Sayuri Sato null (hellen@ift.unesp.br), reason: Solicitamos que realize correções na submissão seguindo as orientações abaixo - Incluir Resumo no PDF Agradecemos a compreensão on 2018-05-02T17:34:18Z (GMT)<br>Submitted by Jhosep Victorino Beltrán Ramirez (jhosep@ift.unesp.br) on 2018-05-03T02:49:03Z No. of bitstreams: 1 TesisDKP.pdf: 952544 bytes, checksum: 7

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27

Metikas, Georgios. "Aspects of thermal field theory with applications to superconductivity." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312156.

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28

Ghadirian, Bahman. "A new regularization procedure for calculating the Casimir energy." View thesis, 2008. http://handle.uws.edu.au:8081/1959.7/24942.

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Thesis (Ph.D.)--University of Western Sydney, 2008.<br>A thesis submitted to the University of Western Sydney, College of Health and Science, School of Biomedical and Health Sciences in fulfilment of the requirements for the degree of Doctor of Philosophy. Includes bibliographical references.

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29

Lopes, Caio Vinicius Costa. "Resposta não linear do vácuo a distribuições de correntes na ausência de um campo externo de fundo e suas aplicações a pulsares e estrelas de quarks." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-07102014-143531/.

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Nesta dissertação de mestrado, nós encontramos a correção não linear aos campos elétrico e magnético produzidos por distribuições de cargas estacionárias, como o monopolo elétrico e o dipolo magnético homogeneamente polarizado em repouso, no vácuo, ou seja, imersas em um campo externo de fundo nulo. A função de resposta não linear é dada pelo tensor de polarização de quarta ordem, devido ao espalhamento de dois fótons, e é escrita dentro da aproximação da ação efetiva em eletrodinâmica quântica. Como aplicações realizamos estimativas numéricas para a correção dos campos produzidos em pulsares

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30

Simpson, William M. R. "Surprises in theoretical Casimir physics : quantum forces in inhomogeneous media." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/6338.

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This thesis considers the problem of determining Casimir-Lifshitz forces in inhomogeneous media. The ground-state energy of the electromagnetic field in a piston-geometry is discussed. When the cavity is empty, the Casimir pressure on the piston is finite and independent of the small-scale physics of the media that compose the mirrors. However, it is demonstrated that, when the cavity is filled with an inhomogeneous dielectric medium, the Casimir energy is cut-off dependent. The local behavior of the stress tensor commonly used in calculations of Casimir forces is also determined. It is shown

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Seyedi, Shila Seyedi. "QFT and Spontaneous Symmetry Breaking." Thesis, Uppsala universitet, Teoretisk fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-425891.

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The aim of this project is to understand the structure of the Standard Model of the particle physics. Therefore quantum field theories (QFT) are studied in the both cases of abelian and non-abelian gauge theories i.e. quantum electrodynamics (QED), quantum chromodynamics (QCD) and electroweak interaction are reviewed. The solution to the mass problem arising in these theories i.e. spontaneous symmetry breaking is also studied.<br>Syftet med detta projekt är att förstå strukturen för partikelfysikens standardmodell. Därför studeras kvantfältsteorier (QFT) i båda fallen av abelska och ic

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Da, silva Antonio. "Theoretical determination of optical properties for sapphire doped with titanium from its microscopy and analysis of its capabilities for laser without population inversion." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLX075/document.

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Cet exposé est scindé en deux grandes parties. Dans la première, nous estimons des constantes photo-physiques du saphir dopé au titane à partir d'un modèle analytique simple exploitant une théorie de Huang-Rhys pour la détermination du profil spectral des bandes simples et une hypothèse réaliste de superposition de ces dernières. Nous déterminons une formule pour l'indice de réfraction total du Ti:saphir en fonction de la concentration de dopant. Dans une seconde partie, nous évaluons, selon la vérification d'un concept, la capacité de laser sana inversion de populations pour un cristal dopé p

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33

Söderberg, Alexander. "Renormalization in Field Theories." Thesis, Uppsala universitet, Teoretisk fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-251561.

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Several different approaches to renormalization are studied. The Callan-Symanzik equation is derived and we study its beta functions. An effective potential for the Coleman-Weinberg model is studied to find that the beta function is positive and that spontaneous symmetry breaking will occur if we expand around the classical field. Lastly we renormalize a non-abelian gaugetheory to find that the beta function in QCD is negative.

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34

McBride, Patrick M. "The Effect of Polarization and InGaN Quantum Well Shape in Multiple Quantum Well Light Emitting Diode Heterostructures." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/822.

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Previous research in InGaN/GaN light emitting diodes (LEDs) employing semi-classical drift-diffusion models has used reduced polarization constants without much physical explanantion. This paper investigates possible physical explanations for this effective polarization reduction in InGaN LEDs through the use of the simulation software SiLENSe. One major problem of current LED simulations is the assumption of perfectly discrete transitions between the quantum well (QW) and blocking layers when experiments have shown this to not be the case. The In concentration profile within InGaN multiple qu

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35

Mondal, Ritwik. "Relativistic theory of laser-induced magnetization dynamics." Doctoral thesis, Uppsala universitet, Materialteori, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-315247.

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Ultrafast dynamical processes in magnetic systems have become the subject of intense research during the last two decades, initiated by the pioneering discovery of femtosecond laser-induced demagnetization in nickel. In this thesis, we develop theory for fast and ultrafast magnetization dynamics. In particular, we build relativistic theory to explain the magnetization dynamics observed at short timescales in pump-probe magneto-optical experiments and compute from first-principles the coherent laser-induced magnetization. In the developed relativistic theory, we start from the fundamental Dirac

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36

Flick, Johannes [Verfasser], Claudia [Gutachter] Draxl, Angel [Gutachter] Rubio, and Dieter [Gutachter] Bauer. "Exact nonadiabatic many-body dynamics : electron-phonon coupling in photoelectron spectroscopy and light-matter interactions in quantum electrodynamical density-functional theory / Johannes Flick. Gutachter: Claudia Draxl ; Angel Rubio ; Dieter Bauer." Berlin : Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://d-nb.info/1112595929/34.

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37

Tajmar, Martin. "Derivation of the Planck and Fine-Structure Constant from Assis’s Gravity Model." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-173411.

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Presently, Planck’s constant is a fundamental constant that can not be derived from other onstants. Assis developed a model based on an extended Weber-type potential energy, that allows calculating gravitational-type forces from neutral oscillating electric dipoles. Here we show that the maximum possible point-mass in his model equals the Planck mass which allows us to derive Planck’s constant and the fine-structure constant. We match the exact order of magnitude only requiring a pre-factor that is present in all Weber-type theories and has to be determined empirically. This classical model al

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Jacquet, Maxime J. "Negative frequency at the horizon : scattering of light at a refractive index front." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/11780.

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This thesis considers the problem of calculating and observing the mixing of modes of positive and negative frequency in inhomogeneous, dispersive media. Scattering of vacuum modes of the electromagnetic field at a moving interface in the refractive index of a dielectric medium is discussed. Kinematics arguments are used to demonstrate that this interface may, in a regime of linear dispersion, act as the analogue of the event horizon of a black hole to modes of the field. Furthermore, a study of the dispersion of the dielectric shows that five distinct configurations of modes of the inhomogene

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Baumgärtel, C., and Martin Tajmar. "The Planck Constant and the Origin of Mass due to a Higher Order Casimir Effect." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-237708.

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The Planck constant is one of the most important constants in nature, as it describes the world governed by quantum mechanics. However, it cannot be derived from other natural constants. We present a model from which it is possible to derive this constant without any free parameters. This is done utilizing the force between two oscillating electric dipoles described by an extension of Weber electrodynamics, based on a gravitational model by Assis. This leads not only to gravitational forces between the particles but also to a newly found Casimir-type attraction. We can use these forces to calc

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Flick, Johannes. "Exact nonadiabatic many-body dynamics." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17581.

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Chemische Reaktionen in der Natur sowie Prozesse in synthetischen Materialien werden oft erst durch die Wechselwirkung von Licht mit Materie ausgelöst. Üblicherweise werden diese komplexen Prozesse mit Hilfe von Näherungen beschrieben. Im ersten Teil der Arbeit wird die Gültigkeit der Born-Oppenheimer Näherung in einem vibronischen Modellsystem (Trans-Polyacetylene) unter Photoelektronenspektroskopie im Gleichgewicht sowie zeitaufgelöster Photoelektronenspektroskopie im Nichtgleichgewicht überprüft. Die vibronische Spektralfunktion zeigt aufgrund des faktorisierten Anfangs- und Endzustandes i

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AL, SALEH-MAHROUSSEH SALOUA. "Calcul relativiste, en electrodynamique quantique, de la diffusion compton sur un electron lie." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF21098.

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Pour expliquer le deplacement et l'elargissement du pic compton,lorsque l'energie du photon est voisine de l'energie de liaison de l'electron, il est necessaire d'introduire non seulement la liaison et le mouvement de l'electron, mais aussi le recul du mnoyau. On donne un calcul relativiste de la valeur quadratique moyenne de l'impulsion de l'electron et une expression generale des fonctions d'onde radiales. Pour le calcul analytique covariant de l'element de matrice ou utilise un propagateur pour un electron lie dans le schema de furry et determine la secton efficace, sans aucune integration

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42

Ting, Chu Ong. "Suppression of radiation damping in electromagnetic waveguide, signature of quantum decoherence in the field bath." Thesis, 2003. http://wwwlib.umi.com/cr/utexas/fullcit?p3116206.

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43

Carmele, Alexander [Verfasser]. "Theory for strongly coupled quantum dot cavity quantum electrodynamics : photon statistics and phonon signatures in quantum light emission / vorgelegt von Alexander Carmele." 2011. http://d-nb.info/1014051835/34.

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Ghahari, Kermani Fereshte. "Interaction Effects on Electric and Thermoelectric Transport in Graphene." Thesis, 2014. https://doi.org/10.7916/D8DJ5D5C.

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Electron-electron (e-e) interactions in 2-dimensional electron gases (2DEGs) can lead to many-body correlated states such as the the fractional quantum Hall effect (FQHE), where the Hall conductance quantization appears at fractional filling factors. The experimental discovery of an anomalous integer quantum Hall effect in graphene has faciliated the study of the interacting electrons which behave like massless chiral fermions. However, the observation of correlated electron physics in graphene is mostly hindered by strong electron scattering caused by charge impurities. We fabricate devices,

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Bolokhov, Pavel Anatolievich. "Lorentz violation in quantum field theory." Thesis, 2007. http://hdl.handle.net/1828/238.

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There are hints coming from some scenarios of modern String and Quantum Gravity theories that Lorentz invariance may not be an exact symmetry of Nature. The study of Lorentz violating theories therefore provides an insight into ultraviolet physics. We employ the Effective Field Theory technique to study the most general extension of the Standard Model and its Supersymmetric modifications with Lorentz-violating interactions of mass dimension five. We provide a complete classification of the interactions in these theories and determine a typical experimental sensitivity to the size of Lorentz

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Marrero, Pablo J. "A nonperturbative study of two-dimensional quartic scalar field theory and three-dimensional compact quantum electrodynamics." 2001. https://scholarworks.umass.edu/dissertations/AAI3027226.

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We studied [special characters omitted] theory and the string sector of compact QED 3 using nonperturbative methods. The phase structure of two dimensional [special characters omitted] theory was studied using Modal Field methods. The critical coupling strength and the critical exponent β were determined for various values of the momentum cutoff and box sizes. The asymptotic value of the critical coupling was found to be 2.5 ± 0.2. The low energy spectrum of the string sector of compact QED3 on the lattice was studied using Diagonalization/Monte Carlo techniques for various lattice sizes. The

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Ghadirian, Bahman, University of Western Sydney, College of Health and Science, and School of Biomedical and Health Sciences. "A new regularization procedure for calculating the Casimir energy." 2008. http://handle.uws.edu.au:8081/1959.7/24942.

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This thesis deals with the concepts of a very interesting phenomenon in quantum physics, the Casimir effect. Here the effect is investigated in detail and its importance to other areas of physics is analysed. The Casimir effect is produced by disturbing the vacuum energy when material boundaries or background fields are introduced in the vacuum. The usual approach to this effect is the vacuum fluctuation that has been studied in the past in relation to the discussion of the zero-point energy as a result of the field resemblance to the quantum harmonic oscillators, where residual ground state e

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Caprez, Adam Preston. "Tests of the Aharonov-Bohm effect." 2009. http://proquest.umi.com/pqdweb?did=1694329131&sid=4&Fmt=2&clientId=14215&RQT=309&VName=PQD.

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Thesis (Ph.D.)--University of Nebraska-Lincoln, 2009.<br>Title from title screen (site viewed June 26, 2009). PDF text: x, 153 p. : ill. (some col.) ; 9 Mb. UMI publication number: AAT 3350442. Includes bibliographical references. Also available in microfilm and microfiche formats.

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"The Pauli-Lubanski Vector in a Group-Theoretical Approach to Relativistic Wave Equations." Doctoral diss., 2016. http://hdl.handle.net/2286/R.I.40221.

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abstract: Chapter 1 introduces some key elements of important topics such as; quantum mechanics, representation theory of the Lorentz and Poincare groups, and a review of some basic rela- ´ tivistic wave equations that will play an important role in the work to follow. In Chapter 2, a complex covariant form of the classical Maxwell’s equations in a moving medium or at rest is introduced. In addition, a compact, Lorentz invariant, form of the energy-momentum tensor is derived. In chapter 3, the concept of photon helicity is critically analyzed and its connection with the Pauli-Lubanski ve

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Delfino, Manuel Carlos. "Tests of quantum electrodynamics and electroweak theory using the reactions e⁺e⁻ (into) [gamma][gamma]([gamma]([gamma])) and e⁺e⁻ (into) e⁺e⁻ at (square root of s) = 29 GeV." 1985. http://catalog.hathitrust.org/api/volumes/oclc/13744898.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1985.<br>Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 113-116).

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