Relevant bibliographies by topics / Classical and semiclassical methods / Dissertations / Theses
To see the other types of publications on this topic, follow the link: Classical and semiclassical methods.

Dissertations / Theses on the topic 'Classical and semiclassical methods'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Classical and semiclassical methods.'

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.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Conrady, Florian. "Semiclassical analysis of loop quantum gravity." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2006. http://dx.doi.org/10.18452/15549.

Full text
Abstract:
In dieser Dissertation untersuchen und entwickeln wir neue Methoden, die dabei helfen sollen eine effektive semiklassische Beschreibung der kanonischen Loop-Quantengravitation und der Spinfoam-Gravitation zu bestimmen. Einer kurzen Einführung in die Loop-Quantengravitation folgen drei Forschungsartikel, die die Resultate der Doktorarbeit präsentieren. Im ersten Artikel behandeln wir das Problem der Zeit und einen neuen Vorschlag zur Implementierung von Eigenzeit durch Randbedingungen an Pfadintegrale: wir untersuchen eine konkrete Realisierung dieses Formalismus für die freie Skalarfeldtheori
APA, Harvard, Vancouver, ISO, and other styles
2

Nguyen, Duc Tho. "Classical and semi-classical analysis of magnetic fields in two dimensions." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S045/document.

Full text
Abstract:
Ce manuscrit est consacré à l'étude de la mécanique classique et la mécanique quantique en présence d'un champ magnétique. En mécanique classique, nous utilisons un Hamiltonien pour décrire la dynamique d'une particule chargée dans un domaine soumis à un champ magnétique. Nous nous intéressons ici à deux problèmes classiques de physique : le problème de confinement et le problème de scattering. Dans le cas quantique, nous étudions le problème spectral du laplacien magnétique au niveau semi-classique dans des domaines de dimension deux: sur une variété Riemanienne compacte à bord et dans ℝ ². E
APA, Harvard, Vancouver, ISO, and other styles
3

Yang, Shuangbo. "Classical cantori and their semiclassical quantization /." view abstract or download file of text, 1999. http://wwwlib.umi.com/cr/uoregon/fullcit?p9940438.

Full text
Abstract:
Thesis (Ph. D.)--University of Oregon, 1999.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 238-241). Also available for download via the World Wide Web; free to University of Oregon users. Address:http://wwwlib.umi.com/cr/uoregon/fullcit?p9940438.
APA, Harvard, Vancouver, ISO, and other styles
4

Ramirez, Daniel Alonso. "Semiclassical quantization and classical chaotic systems." Doctoral thesis, Universite Libre de Bruxelles, 1995. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212531.

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

Sauvaget, Thomas. "Classical and semiclassical studies of the hydrogen molecule." Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438183.

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

Coveney, P. V. "Semiclassical methods in scattering and spectroscopy." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354826.

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

Walton, Andrew Richard. "Semiclassical initial value methods for dynamics." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282584.

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

Brewer, M. L. "Semiclassical methods for the calculation of Franck-Condon spectra." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267953.

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

Singh, Pranav. "High accuracy computational methods for the semiclassical Schrödinger equation." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/274913.

Full text
Abstract:
The computation of Schrödinger equations in the semiclassical regime presents several enduring challenges due to the presence of the small semiclassical parameter. Standard approaches for solving these equations commence with spatial discretisation followed by exponentiation of the discretised Hamiltonian via exponential splittings. In this thesis we follow an alternative strategy${-}$we develop a new technique, called the symmetric Zassenhaus splitting procedure, which involves directly splitting the exponential of the undiscretised Hamiltonian. This technique allows us to design methods tha
APA, Harvard, Vancouver, ISO, and other styles
10

Rush, Alexander. "Semiclassical phase-space methods for Hermitian and non-Hermitian quantum dynamics." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/43536.

Full text
Abstract:
In this thesis, we study semiclassical phase-space methods for quantum evolution in Hermitian and non-Hermitian systems. We first present the dynamics of Gaussian wave packets under non-Hermitian Hamiltonians and interpret them as a classical dynamics for complex Hamiltonians. We use these to derive exact dynamics for wave packets in the quadratic Swanson oscillator. We show that in the case of unbroken PT-symmetry there can be periodic divergences in this system and relate this to the fact that any operator mapping the system to a Hermitian counterpart is unbounded. We apply the semiclassical
APA, Harvard, Vancouver, ISO, and other styles
11

Römer, Sarah. "The Classical limit of bohmian mechanics : semiclassical wave packets and an application to many particle scattering theory /." Tönning [u.a.] : Der Andere Verlag, 2010. http://edoc.ub.uni-muenchen.de/11314/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Franz, Mario. "Semiclassical methods for weak non-leptonic processes and intrinsic charm in light hadrons." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971953554.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Pankrachkine, Konstantin. "Semiclassical methods for the two-dimensional Schrödinger operator with a strong magnetic field." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=966445082.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Pankrachkine, Konstantin. "Semiclassical methods for the two-dimensional Schrödiger operator with a strong magnetic field." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2002. http://dx.doi.org/10.18452/14829.

Full text
Abstract:
Es werden spektrale Eigenschaften des zweidimensionalen Schrödinger-Operators mit einem zweifach periodischen Potential und starkem magnetischem Feld untersucht mit Hilfe semiklassischer Methoden. Man beschreibt die spektrale Asymptotik durch Benutzung der Reeb-Graph-Technik. Im Falle des rationalen Flusses konstruiert man semiklassische Magneto-Bloch-Funktionen und beschreibt die Asymptotik des Spektrums auf dem physikalischen Beweisniveau.<br>Spectral properties of the two-dimensional Schroedinger operator with a two-periodic potential and a strong uniform magnetic field is studied with the
APA, Harvard, Vancouver, ISO, and other styles
15

Pigorsch, Christian. "Quantum theoretical methods in application to classical systems." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962022276.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Sebell, Dustin. "The Foundations and Methods of Classical Political Science." Thesis, Boston College, 2014. http://hdl.handle.net/2345/bc-ir:104184.

Full text
Abstract:
Thesis advisor: Robert C. Bartlett<br>This dissertation is an attempt to understand and assess the presuppositions and methods of classical political science. In the first of its two parts, the dissertation examines the meaning of the traditional view, held by authorities as far removed from one another as Cicero and Hobbes, that Socrates was the founder of political philosophy. It does so by considering the intellectual autobiography that Socrates famously delivers in Plato's Phaedo. Socrates turned to the study of pre-scientific, common-sense moral and political opinions only after he had re
APA, Harvard, Vancouver, ISO, and other styles
17

Navarro, Guerrero Cristóbal Alejandro. "Parallel methods for classical and disordered Spin models." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/136491.

Full text
Abstract:
Doctor en Ciencias, Mención Computación<br>En las últimas décadas han crecido la cantidad de trabajos que buscan encontrar metodos eficientes que describan el comportamiento macroscópico de los sistemas de spin, a partir de una definición microscópica. Los resultados que se obtienen de estos sistemas no solo sirven a la comunidad fı́sica, sino también a otras áreas como dinámica molecular, redes sociales o problemas de optimización, entre otros. El hecho de que los sistemas de spin puedan explicar fenómenos de otras áreas ha generado un interés global en el tema. El problema es, sin emba
APA, Harvard, Vancouver, ISO, and other styles
18

PEREA, CÓRDOBA MILTÓN HENRY. "On the semiclassical limit of emergent quantum mechanics, as a classical thermodynamics of irreversible processes in the linear regime." Doctoral thesis, Universitat Politècnica de València, 2015. http://hdl.handle.net/10251/54840.

Full text
Abstract:
[EN] Motivated by the conceptual problems concerning the quantisation of gravity, the Dutch theoretical physicist G. 't Hooft (1999 Nobel prize in physics) put forward the notion that quantum mechanics must be the emergent theory of some underlying, deterministic theory. This proposal usually goes by the name quantum mechanics as an emergent phenomenon. This research line, initiated by 't Hooft in the late 1990's, has been the subject of intense research over the last 15 years, by 't Hooft himself as well as by many other researchers. In this PhD thesis we present our own approach to quantum m
APA, Harvard, Vancouver, ISO, and other styles
19

Nys, Manon. "Schrödinger equations with an external magnetic field: Spectral problems and semiclassical states." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/216641.

Full text
Abstract:
In this thesis, we study Schrödinger equations with an external magnetic field. In the first part, we are interested in an eigenvalue problem. We work in an open, bounded and simply connected domain in dimension two. We consider a magnetic potential singular at one point in the domain, and related to the magnetic field being a multiple of a Dirac delta. Those two objects are related to the Bohm-Aharonov effect, in which a charged particle is influenced by the presence of the magnetic potential although it remains in a region where the magnetic field is zero. We consider the Schrödinger magneti
APA, Harvard, Vancouver, ISO, and other styles
20

Wang, Zhongming. "Development of level set methods for computing the semiclassical limit of Schrodinger equations with potentials." [Ames, Iowa : Iowa State University], 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
21

Karlsson, Ulf. "Semi-classical approximations of Quantum Mechanical problems." Doctoral thesis, KTH, Mathematics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3440.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Onak, Krzysztof (Krzysztof Piotr). "New sublinear methods in the struggle against classical problems." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62428.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 129-134).<br>We study the time and query complexity of approximation algorithms that access only a minuscule fraction of the input, focusing on two classical sources of problems: combinatorial graph optimization and manipulation of strings. The tools we develop find applications outside of the area of sublinear algorithms. For instance, we obtain a more efficient approximation algorithm for edit d
APA, Harvard, Vancouver, ISO, and other styles
23

Camminady, Thomas [Verfasser], and M. [Akademischer Betreuer] Frank. "Theory, models, and numerical methods for classical and non-classical transport / Thomas Camminady ; Betreuer: M. Frank." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1226221939/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Nortjé, Yolandi. "Biomass conversion into biofuels by non–classical methods / Yolandi Nortjé." Thesis, North-West University, 2011. http://hdl.handle.net/10394/6879.

Full text
Abstract:
This investigation was launched in view of two imminent needs in industry today, viz. development of an alternative fuel to replace rapidly dwindling fossil fuel resources, preferably by biomass conversion, and production of a biofuel as a new energy source by implementing clean technology complying with the requirements of green chemistry. Seed from the diesel tree (Jatropha curcas L.) and sawdust from pine (Pinus taeda L.) were selected as biomass sources since their properties, like rich oil content or diversity of constituents, met the suitability criteria for eventual conversion to biofue
APA, Harvard, Vancouver, ISO, and other styles
25

Weidig, Tom. "Classical and quantum aspects of topological solitons (using numerical methods)." Thesis, Durham University, 1999. http://etheses.dur.ac.uk/4277/.

Full text
Abstract:
In Introduction, we review integrable and topological solitons. In Numerical Methods, we describe how to minimize functionals, time-integrate configurations and solve eigenvalue problems. We also present the Simulated Annealing scheme for minimisation in solitonic systems. In Classical Aspects, we analyse the effect of the potential term on the structure of minimal- energy solutions for any topological charge n. The simplest holomorphic baby Skyrme model has no known stable minimal-energy solution for n > 1. The one-vacuum baby Skyrme model possesses non-radially symmetric multi-skyrmions that
APA, Harvard, Vancouver, ISO, and other styles
26

Kelly, P. J. "A comparison of classical and robust methods of parameter estimation." Thesis, University of Newcastle Upon Tyne, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383998.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Mata, Ricardo André Fernandes da. "Local correlation methods in classical and quantum mechanics hybrid schemes." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-33346.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Britnell, John R. "Cycle index methods for matrix groups over finite fields." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275602.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

DUARTE, JHONATAN CONTRERAS. "A COMPARISON BETWEEN CLASSICAL OBJECT BASED METHODS AND CONDITIONAL RANDOM FIELDS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=29748@1.

Full text
Abstract:
PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Esta dissertação visa investigar técnicas de segmentação semântica para a análise de dados de observação da Terra. Dois são os objetivos perseguidos neste estudo. O primeiro é avaliar o potencial de técnicas de segmentação semântica como opção aos métodos tradicionais de segmentação de imagens que tipicamente ignoram a informação semântica. O segundo objetivo consiste em comparar a segmentação semântica com a abordagem típica baseada em objet
APA, Harvard, Vancouver, ISO, and other styles
30

Heady, Lucy Clare. "Inhibiting CDK2 : a computational study with ab-initio and classical methods." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613729.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Thompson, Jeremy R. (Jeremy Ray). "Physical Motivation and Methods of Solution of Classical Partial Differential Equations." Thesis, University of North Texas, 1995. https://digital.library.unt.edu/ark:/67531/metadc277898/.

Full text
Abstract:
We consider three classical equations that are important examples of parabolic, elliptic, and hyperbolic partial differential equations, namely, the heat equation, the Laplace's equation, and the wave equation. We derive them from physical principles, explore methods of finding solutions, and make observations about their applications.
APA, Harvard, Vancouver, ISO, and other styles
32

Di, Cosmo Jonathan. "Nonlinear Schrödinger equation and Schrödinger-Poisson system in the semiclassical limit." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209863.

Full text
Abstract:
The nonlinear Schrödinger equation appears in different fields of physics, for example in the theory of Bose-Einstein condensates or in wave propagation models. From a mathematical point of view, the study of this equation is interesting and delicate, notably because it can have a very rich set of solutions with various behaviours.<p><p>In this thesis, we have been interested in standing waves, which satisfy an elliptic partial differential equation. When this equation is seen as a singularly perturbed problem, its solutions concentrate, in the sense that they converge uniformly to zero outsid
APA, Harvard, Vancouver, ISO, and other styles
33

Fryer, Sian. "The q-division ring, quantum matrices and semi-classical limits." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/the-qdivision-ring-quantum-matrices-and-semiclassical-limits(2306256f-4fbc-44c8-9cad-10377cf159a2).html.

Full text
Abstract:
Let k be a field of characteristic zero and q ∈ kx not a root of unity. We may obtain non-commutative counterparts of various commutative algebras by twisting the multiplication using the scalar q: one example of this is the quantum plane kq[x; y], which can be viewed informally as the set of polynomials in two variables subject to the relation xy = qyx. We may also consider the full localization of kq[x; y], which we denote by kq(x; y) or D and view as the non-commutative analogue of k(x; y), and also the quantization Oq(Mn) of the coordinate ring of n x n matrices over k. Our aim in this the
APA, Harvard, Vancouver, ISO, and other styles
34

Chan, Wilbur Wai Pang. "Comparison of classical and transient analysis methods for estimation of VOR dynamics." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19449.

Full text
Abstract:
The Vestibular Ocular Reflex (VOR) controls the stability ofgaze in mammals and operates even in darkness. It has been classically believed that the VOR can be represented by a steady state model, in which the switching between slow and fast phases does not affect the content in each slow phase segment. This assumption, as we will explore in this thesis, is found to be invalid. Furthermore, a new analysis method that takes into account the transient effect ofthe switching will be introduced. The classical and a new transient analysis method are first tested on simulated VOR data. The results s
APA, Harvard, Vancouver, ISO, and other styles
35

Huang, Xin. "Contributions to seismogram modeling by classical Maslov and new Maslov-Kirchhoff methods." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ27959.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Attardo, Amy M. "Application of classical verses Bayesian statistical methods to on-line radiological monitoring." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1181250616/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Niese, Derrick A. "PELTASTS AND JAVELINEERS IN CLASSICAL GREEK WARFARE: ROLES, TACTICS, AND FIGHTING METHODS." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1334275977.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Moreno, Jaimes Camilo Alfonso [Verfasser], and Juan-Diego [Akademischer Betreuer] Urbina. "The semiclassical approach to open quantum systems beyond the weak coupling regime: quantum-classical transition and many-body interference / Camilo Alfonso Moreno Jaimes ; Betreuer: Juan-Diego Urbina." Regensburg : Universitätsbibliothek Regensburg, 2021. http://d-nb.info/1237105854/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Baez, Maria Laura [Verfasser]. "Numerical methods for frustrated magnetism : from quantum to classical spin systems / Maria Laura Baez." Berlin : Freie Universität Berlin, 2018. http://d-nb.info/1170876846/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Andrade, Valente da Silva Michelle. "SLAM and data fusion for autonomous vehicles : from classical approaches to deep learning methods." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM079.

Full text
Abstract:
L'arrivée des voitures autonomes va provoquer une transformation très importante de la mobilité urbaine telle que nous la connaissons, avec un impact significatif sur notre vie quotidienne. En effet, elles proposent un nouveau système de déplacement plus efficace, plus facilement accessible et avec une meilleure sécurité routière. Pour atteindre cet objectif, les véhicules autonomes doivent effectuer en toute sécurité et de manière autonome trois tâches principales: la perception, la planification et le contrôle. La perception est une tâche particulièrement difficile en milieu urbain, car elle
APA, Harvard, Vancouver, ISO, and other styles
41

Govender, Krishna Kuben. "The development of hybrid quantum classical computational methods for carbohydrate and hypervalent phosphoric systems." Doctoral thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13297.

Full text
Abstract:
Includes bibliographical references.<br>Ab initio, density functional theory, and semi-empirical methods serve as major computational tools for quantum mechanical calculations of medium to large molecular systems. Semi-empirical methods are most effectively used in a hybrid quantum mechanics/molecular mechanics (QM/MM) dynamics framework. However, semi-empirical methods have been designed to provide accurate results for organic molecules, but often fail to treat hypervalent species accurately due to their use of an sp basis. Recently, significant breakthroughs have been made with the incorpora
APA, Harvard, Vancouver, ISO, and other styles
42

Tcheutia, Daniel Duviol [Verfasser]. "Algorithmic Methods for Mixed Recurrence Equations, Zeros of Classical Orthogonal Polynomials and Classical Orthogonal Polynomial Solutions of Three-Term Recurrence Equations / Daniel Duviol Tcheutia." Kassel : Universitätsbibliothek Kassel, 2019. http://d-nb.info/1195722036/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Downs, M. L. N. "Mobius inversion of some classical groups and their application to the enumeration of regular hypermaps." Thesis, University of Southampton, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381232.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Pacilio, Costantino. "Classical and quantum aspects of black hole dynamics." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7532/.

Full text
Abstract:
Il contenuto fisico della Relatività Generale è espresso dal Principio di Equivalenza, che sancisce l'equivalenza di geometria e gravitazione. La teoria predice l'esistenza dei buchi neri, i più semplici oggetti macroscopici esistenti in natura: essi sono infatti descritti da pochi parametri, le cui variazioni obbediscono a leggi analoghe a quelle della termodinamica. La termodinamica dei buchi neri è posta su basi solide dalla meccanica quantistica, mediante il fenomeno noto come radiazione di Hawking. Questi risultati gettano una luce su una possibile teoria quantistica della gravitazione, m
APA, Harvard, Vancouver, ISO, and other styles
45

Liu, Wei. "Asymptotic properties and finite time convergence of classical and modified methods for stochastic differential equations." Thesis, University of Strathclyde, 2013. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=22727.

Full text
Abstract:
As few stochastic differential equations have explicit solutions, the numerical schemes are studied to approximate the underlying solution. The fast development in computer science in recent years has made large scale simulations available, then the numerical analysis for stochastic differential equations has been blooming in past decades. However, the study on numerical solutions is still far behind the study on the underlying solutions. This thesis is devoted to mathematically rigorous investigation on the numerical solutions. Among all those attractive mysteries in the numerical analysis of
APA, Harvard, Vancouver, ISO, and other styles
46

Sadeghi, Keyvan. "Classical and approximate methods in the dynamic response analysis of a truss spar in waves." Thesis, University of Newcastle Upon Tyne, 2005. http://hdl.handle.net/10443/217.

Full text
Abstract:
It is shown that, in the context of a linear theory, all radiation actions of fluid on a floating body can solely be represented by the fluid kinetic and potential energy associated with the wetted surface of the body. In this regard, it is indicated that the linear radiation damping can be expressed by a part of the fluid kinetic energy which has a bilinear form. The linear problem of a floating body motion is then studied in the context of a general linear dynamical system with such form of kinetic energy. From the Lagrange's equations of motion, an equation of motion is derived which genera
APA, Harvard, Vancouver, ISO, and other styles
47

Rava, Andrea Basilio. "Quantum approximate optimization algorithm: combinatorial problems and classical statistical models." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23113/.

Full text
Abstract:
The Quantum Approximate Optimization Algorithm (QAOA) is a hybrid quantum-classical algorithm for solving combinatorial optimization problems. Since most of combinatorial optimization problems may be thought as particular instances of Ising Hamiltonians, the study of the QAOA is very relevant from the physical point of view for its potential applications in describing physical systems. In the QAOA a quantum state is prepared and, through 2p parameterized quantum evolutions, a final state which represents an extreme of cost function and encodes the approximate solution of the problem is obtaine
APA, Harvard, Vancouver, ISO, and other styles
48

Grigolo, Adriano 1986. "Multiconfigurational trajectory-guided quantum dynamics with generalized coherent states = Dinâmica quântica multiconfiguracional guiada por trajetórias com estados coerentes generalizados." [s.n.], 2017. http://repositorio.unicamp.br/jspui/handle/REPOSIP/330489.

Full text
Abstract:
Orientador: Marcus Aloizio Martinez de Aguiar<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-09-02T17:51:39Z (GMT). No. of bitstreams: 1 Grigolo_Adriano_D.pdf: 6040981 bytes, checksum: 874a21109be77dc3f306ac9ce74f90b5 (MD5) Previous issue date: 2017<br>Resumo: Uma versão generalizada do método 'coupled coherent states' é desenvolvida para estados coerentes associados a grupos de Lie arbitrários. Em contraste com a abordagem original, restrita a funções de base gaussianas, o método estendido é adequado para propag
APA, Harvard, Vancouver, ISO, and other styles
49

Frühwirth-Schnatter, Sylvia. "MCMC Estimation of Classical and Dynamic Switching and Mixture Models." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 1998. http://epub.wu.ac.at/698/1/document.pdf.

Full text
Abstract:
In the present paper we discuss Bayesian estimation of a very general model class where the distribution of the observations is assumed to depend on a latent mixture or switching variable taking values in a discrete state space. This model class covers e.g. finite mixture modelling, Markov switching autoregressive modelling and dynamic linear models with switching. Joint Bayesian estimation of all latent variables, model parameters and parameters determining the probability law of the switching variable is carried out by a new Markov Chain Monte Carlo method called permutation sampling. Estima
APA, Harvard, Vancouver, ISO, and other styles
50

Wallen, Lincoln A. "Automated proof search in non-classical logics : efficient matrix proof methods for modal and intuitionistic logics." Thesis, University of Edinburgh, 1987. http://hdl.handle.net/1842/6600.

Full text
Abstract:
In this thesis we develop efficient methods for automated proof search within an important class of mathematical logics. The logics considered are the varying, cumulative and constant domain versions of the first-order modal logics K, K4, D, D4, T, S4 and S5, and first-order intuitionistic logic. The use of these non-classical logics is commonplace within Computing Science and Artificial Intelligence in applications in which efficient machine assisted proof search is essential. Traditional techniques for the design of efficient proof methods for classical logic prove to be of limited use in th
APA, Harvard, Vancouver, ISO, and other styles
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