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Relevant bibliographies by topics / Quantum computation and simulation / Dissertations / Theses

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Dissertations / Theses on the topic 'Quantum computation and simulation'

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Published: 4 June 2025

Last updated: 1 August 2025

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1

Koh, Dax Enshan. "Classical simulation complexity of restricted models of quantum computation." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122164.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mathematics, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 355-372).<br>Restricted models of quantum computation are mathematical models which describe quantum computers that have limited access to certain resources. Well-known examples of such models include the boson sampling model, extended Clifford circuits, and instantaneous quantum polynomial-time circuits. While unlikely to be universal for quantum computation, several of these models appear to be able to outperform classic

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2

Patz, Geva 1973. "A parallel environment for simulating quantum computation." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/16955.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2003.<br>Includes bibliographical references (p. 131-134).<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>This thesis describes the design and implementation of an environment to allow quantum computation to be simulated on classical computers. Although it is believed that quantum computers cannot in general be efficiently simulated classically, it is nevertheless

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3

Edwards, Luke J. "Highly efficient quantum spin dynamics simulation algorithms." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:3eec480e-5a3a-4197-a786-e6d42988d4a5.

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Spin dynamics simulations are used to gain insight into important magnetic resonance experiments in the fields of chemistry, biochemistry, and physics. Presented in this thesis are investigations into how to accelerate these simulations by making them more efficient. Chapter 1 gives a brief introduction to the methods of spin dynamics simulation used in the rest of the thesis. The `exponential scaling problem' that formally limits the size of spin system that can be simulated is described. Chapter 2 provides a summary of methods that have been developed to overcome the exponential scaling prob

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4

Gonçalves, Bárbara Bellaver. "A quantum physics approach for simulating agate colors." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/70235.

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A simulação de cores corresponde à essência do processo de síntese de imagens realistas. Em se tratando de minerais, a presença de uma dada impureza, ou uma variação de sua concentração, pode fazer com que alguns materiais sofram alterações dramáticas em suas cores. Por exemplo, enquanto o quartzo puro é transparente, a ametista é um tipo violeta de quartzo, cuja cor é determinada pela presença de traços de ferro. A quantidade de ferro define o matiz percebido. A cor apresentada por um mineral pode ser determinada com base no seu espectro de absorção. No entanto, a definição de todas as variaç

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5

Andersson, Andreas. "State and Process Tomography : In Spekkens' Toy Model." Thesis, Linköpings universitet, Informationskodning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-163156.

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In 2004 Robert W. Spekkens introduced a toy theory designed to make a case for the epistemic view of quantum mechanics. But how does Spekkens’ toy model differ from quantum theory? While some differences are well-established, we attempt to approach this question from a tomographic point of view. More speciﬁcally, we provide experimentally viableprocedureswhichenablesustocompletelycharacterizethestatesandgatesthatare available in the toy model. We show that, in contrast to quantum theory, decompositions of transformations in the toy model must be done in a non-linear fashion.

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6

Shary, Stephen. "Java Simulator of Qubits and Quantum-Mechanical Gates Using the Bloch Sphere Representation." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1298044339.

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7

CIRILLO, GIOVANNI AMEDEO. "Engineering quantum computing technologies: from compact modelling to applications." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2971119.

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8

Forets, Irurtia Marcelo Alejandro. "Marches quantiques et mécanique quantique relativiste." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAM028/document.

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Cette thèse étudie deux modèles de calcul: les marches quantiques (QW) et les automates cellulaires quantiques (QCA), en vue de les appliquer en simulation quantique. Ces modèles ont deux avantages stratégiques pour aborder ce problème: d'une part, ils constituent un cadre mathématique privilégié pour coder la description du système physique à simuler; d'autre part, ils correspondent à des architectures expérimentalement réalisables.Nous effectuons d'abord une analyse des QWs en tant que schéma numérique pour l'équation de Dirac, en établissant leur borne d'erreur globale et leur taux de conve

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9

Peartree, Philip Neil Alexander. "Simulation studies of aromatic amine dehydrogenase bound phenylethylamine analogues." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/simulation-studies-of-aromatic-amine-dehydrogenase-bound-phenylethylamine-analogues(5ea2720e-b66a-4287-b2b8-eb4793a966d7).html.

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A series of para-substituted phenylethylamine analogues bound to the enzyme aromatic amine dehydrogenase have been simulated using quantum mechanical electronic structure calculations and molecular mechanical molecular dynamics simulations. Trends have been verified connecting bond dissociation energy (and thus driving force) to observed rate constants and activation enthalpy. Trends have been identified in connecting statistics drawn from molecular dynamics simulations and the temperature dependence of the kinetic isotope effect, notably that as the temperature dependence of the kinetic isoto

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10

Li, Haisen. "Parallel computations in Quantum Monte Carlo simulation of the van der Waals cluster vibrational eigenstates /." View online ; access limited to URI, 2004. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3135907.

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11

Wallrapp, Frank. "Mixed quantum and classical simulation techniques for mapping electron transfer in proteins." Doctoral thesis, Universitat Pompeu Fabra, 2011. http://hdl.handle.net/10803/22685.

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El objetivo de esta tesis se centra en el estudio de la transferencia de electrones (ET), una de las reacciones más simples y cruciales en bioquímica. Para dichos procesos, obtener información directa de los factores que lo promueves, asi como del camino de transferencia electronica, no es una tarea trivial. Dicha información a un nivel de conocimiento detallado atómico y electrónico, sin embargo, es muy valiosa en términos de una mejor comprensión del ciclo enzimático, que podría conducir, por ejemplo, a un dise

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12

Lumia, Luca. "Digital quantum simulations of Yang-Mills lattice gauge theories." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22355/.

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I metodi di calcolo tradizionali per le teorie di gauge su reticolo risultano problematici in regioni di diagrammi di fase a grandi valori del potenziale chimico o quando sono utilizzate per riprodurre la dinamica in tempo reale di un modello. Tali problemi possono essere evitati da simulazioni quantistiche delle teorie di gauge su reticolo, le quali stanno diventando sempre più riproducibili sperimentalmente, grazie ai recenti progressi tecnologici. In questa tesi formuliamo una versione delle teorie di Yang-Mills su reticolo appropriata per risolvere il problema della dimensione infinita del

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13

Walker, Alice Rachel. "Computational Simulations of Cancer and Disease-Related Enzymatic Systems Using Molecular Dynamics and Combined Quantum Methods." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1157647/.

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This work discusses applications of computational simulations to enzymatic systems with a particular focus on the effects of various small perturbations on cancer and disease-related systems. First, we cover the development of carbohydrate-based PET imaging ligands for Galectin-3, which is a protein overexpressed in pancreatic cancer tumors. We uncover several structural features for the ligands that can be used to improve their binding and efficacy. Second, we discuss the AlkB family of enzymes. AlkB is the E. coli DNA repair protein for alkylation damage, and has human homologues with slig

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14

Araújo, George Barbosa. "Estudo teórico das propriedades óticas e magnéticas de derivados e intermediários da reação de oxidação do triptofano." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-21102014-164204/.

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O triptofano é um aminoácido essencial, sendo o precursor do neurotransmissor serotonina. Esse composto é suscetível a oxidação por ação do oxigênio singleto, o que atrai interesse acadêmico devido a sua associação com doenças como a catarata. Nesse sentido, o presente trabalho se dedicou a investigar as propriedades estruturais e espectroscópicas de quatro moléculas envolvidas nessa oxidação: triptofano, triptofano hidroperóxido, tautômero anelar do triptofano hidroperóxido (WOOH) e álcool (WOH) reduzido dessa última molécula, através da aplicação de técnicas de Química Quântica: Teori

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15

Giannakopoulos, Dimitrios. "Quantum computation." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA365665.

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16

Barenco, Adriano. "Quantum computation." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360152.

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17

Gourlay, Iain. "Quantum computation." Thesis, Heriot-Watt University, 2000. http://hdl.handle.net/10399/568.

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18

Barr, Katherine Elizabeth. "Quantum walks and quantum computation." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/4975/.

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The field of quantum information applies the concepts of quantum physics to problems in computer science, and shows great potential for allowing efficient computation. In this thesis I concentrate on a particular quantum information theoretic tool known as the quantum walk. There are two widely studied versions of the quantum walk, the continuous time walk, and the discrete time walk. The discrete time walk is particularly amenable to investigation using numerical methods, from which most of the results in this thesis are derived, and is the main focus of the work presented. Two aspects of the

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19

Roland, Jérémie. "Adiabatic quantum computation." Doctoral thesis, Universite Libre de Bruxelles, 2004. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211148.

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Le développement de la Théorie du Calcul Quantique provient de l'idée qu'un ordinateur est avant tout un système physique, de sorte que ce sont les lois de la Nature elles-mêmes qui constituent une limite ultime sur ce qui peut être calculé ou non. L'intérêt pour cette discipline fut stimulé par la découverte par Peter Shor d'un algorithme quantique rapide pour factoriser un nombre, alors qu'actuellement un tel algorithme n'est pas connu en Théorie du Calcul Classique. Un autre résultat important fut la construction par Lov Grover d'un algorithme capable de retrouver un élément dans une base d

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20

Georg, Herbert de Castro. "Estudo teórico da estabilidade estrutural e solvatação hidrofílica da alfa-ciclodextrina." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-15122016-105928/.

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Fizemos um estudo teórico sistemático e criterioso para entender o papael das moléculas de água na estabilização da geometria de alfa-ciclodextrina (alfa-CD) em solução aquosa. Adicionalmente, analisamos a confiabilidade dos campos de força clássicos amplamente utilizados e a aplicabilidade de geometrias otimizadas com cálculos quânticos, através de comparação com resultados experimentais. Inicialmente realizamos otimizações de geometria da alfa-CD isolada utilizando os métodos clássicos AMBER, OPLS e MM2 e os métodos quânticos Hartree-Fock (HF), AM1 e PM3. Dentre as 42 geometrias encontradas,

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21

Dodd, Jennifer L. "Universality in quantum computation /." [St. Lucia, Qld], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18197.pdf.

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22

Block, Aaron. "Quantum computation an introduction /." Diss., Connect to the thesis, 2002. http://hdl.handle.net/10066/1468.

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23

Grimmelmann, James Taylor Lewis. "Quantum Computation: An Introduction." Thesis, Harvard University, 1999. http://nrs.harvard.edu/urn-3:HUL.InstRepos:14485381.

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24

Smith, Adam (Adam Davidson) 1977. "Multi-party quantum computation." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86782.

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25

Wootton, James Robin. "Dissecting topological quantum computation." Thesis, University of Leeds, 2010. http://etheses.whiterose.ac.uk/1163/.

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Anyons are quasiparticles that may be realized in two dimensional systems. They come in two types, the simpler Abelian anyons and the more complex non-Abelian anyons. Both of these have been considered as a means for quantum computation, but non-Abelian anyons are usually assumed to be better suited to the task. Here we challenge this view, demonstrating that Abelian anyon models have as much potential as some simple non-Abelian models. First the means to perform quantum computation with Abelian anyon models is considered. These models, like many non-Abelian models, cannot realize universal qu

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26

Christ, Henning. "Quantum computation with nuclear spins in quantum dots." München Verl. Dr. Hut, 2008. http://d-nb.info/992162831/04.

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27

Bartlett, Stephen D., Hubert de Guise, Barry C. Sanders, and Andreas Cap@esi ac at. "Quantum Computation with Harmonic Oscillators." ESI preprints, 2000. ftp://ftp.esi.ac.at/pub/Preprints/esi962.ps.

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28

Wagner, Robert Christian. "Continuous variables and quantum computation." Thesis, University of Leeds, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.550885.

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This thesis addresses ideas and problems in continuous-variable quan- turn computation and information. Beginning with a physically mo- tivated answer to the question "when can it be said that a physical system is performing a computation?", I make practical investiga- tions into computational problems. I define and describe universal continuous-variable quantum computation (CVQC) in terms of con- ventional encodings into physical systems and discuss algorithms. I then look at the classical information content of some continuous- variable quantum states and how they can be used for a communi-

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29

Yoder, Theodore J. "Practical fault-tolerant quantum computation." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/115680.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 190-201).<br>For the past two and a half decades, a subset of the physics community has been focused on building a new type of computer, one that exploits the superposition, interference, and entanglement of quantum states to compute faster than a classical computer on select tasks. Manipulating quantum systems requires great care, however, as they are quite sensitive to many sources of noise. Surpassing the limits of hardwar

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30

Nagaj, Daniel. "Local Hamiltonians in quantum computation." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45162.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2008.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 169-176).<br>In this thesis, I investigate aspects of local Hamiltonians in quantum computing. First, I focus on the Adiabatic Quantum Computing model, based on evolution with a time- dependent Hamiltonian. I show that to succeed using AQC, the Hamiltonian involved must have local structure, which leads to a result about eige

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31

Arkhipov, Alex (Aleksandr). "Quantum computation with identical bosons." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113995.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 103-106).<br>We investigate the computational complexity of quantum computing with identical noninteracting bosons, such as that in a linear optical system. We explore the challenges in building devices that implement this model and in certifying their correctness. In work done with Scott Aaronson, we introduce BOSONSAMPLING, a computational model of quantum linear optics [1]. We argue that

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32

Kay, Alastair Stuart. "Quantum computation with minimal control." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612718.

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33

Rival, Olivier. "Organic materials for quantum computation." Thesis, University of Oxford, 2009. http://ora.ox.ac.uk/objects/uuid:3674b9ce-c284-47b5-ab0d-76d094c849f0.

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Quantum mechanics has a long history of helping computer science. For a long time, it provided help only at the hardware level by giving a better understanding of the properties of matter and thus allowing the design of ever smaller and ever more efficient components. For the last few decades, much research has been dedicated to finding whether one can change computer science even more radically by using the principles of quantum mechanics at both the hardware and algorithm levels. This field of research called Quantum Information Processing (QIP) has rapidly seen interesting theoretical devel

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34

Gheorghiu, Alexandru. "Robust verification of quantum computation." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31542.

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Quantum computers promise to offer a considerable speed-up in solving certain problems, compared to the best classical algorithms. In many instances, the gap between quantum and classical running times is conjectured to be exponential. While this is great news for those applications where quantum computers would provide such an advantage, it also raises a significant challenge: how can classical computers verify the correctness of quantum computations? In attempting to answer this question, a number of protocols have been developed in which a classical client (referred to as verifier) can inte

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35

Marsden, Daniel. "Logical aspects of quantum computation." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:e99331a3-9d93-4381-8075-ad843fb9b77c.

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A fundamental component of theoretical computer science is the application of logic. Logic provides the formalisms by which we can model and reason about computational questions, and novel computational features provide new directions for the development of logic. From this perspective, the unusual features of quantum computation present both challenges and opportunities for computer science. Our existing logical techniques must be extended and adapted to appropriately model quantum phenomena, stimulating many new theoretical developments. At the same time, tools developed with quantum applica

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36

Lin, Cedric Yen-Yu. "Alternative models for quantum computation/." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99307.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 165-181).<br>We propose and study two new computational models for quantum computation, and infer new insights about the circumstances that give quantum computers an advantage over classical ones. The bomb query complexity model is a variation on the query complexity model, inspired by the Elitzur-Vaidman bomb tester. In this model after each query to the black box the result is measured, and the algorithm fails if the measur

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37

Chen, Joseph C. H. "Quantum computation and natural language processing." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965581020.

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38

Eppens, Daniel. "Prime Factorization by Quantum Adiabatic Computation." Thesis, KTH, Fysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-138164.

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Hajdusek, Michal. "Thermodynamics, quantum computation and cluster states." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531532.

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40

Jordan, Stephen Paul. "Quantum computation beyond the circuit model." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45448.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2008.<br>Includes bibliographical references (p. 133-144).<br>The quantum circuit model is the most widely used model of quantum computation. It provides both a framework for formulating quantum algorithms and an architecture for the physical construction of quantum computers. However, several other models of quantum computation exist which provide useful alternative frameworks for both discovering new quantum algorithms and devising new physical implementations of quantum computers. In this thesis, I first present neces

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O'Gorman, Joe. "Architectures for fault-tolerant quantum computation." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:4219548d-798b-45f8-b376-91025bbe3ec4.

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Quantum computing has enormous potential, but this can only be realised if quantum errors can be controlled sufficiently to allow quantum algorithms to be completed reliably. However, quantum-error-corrected logical quantum bits (qubits) which can be said to have achieved meaningful error suppression have not yet been demonstrated. This thesis reports research on several topics related to the challenge of designing fault-tolerant quantum computers. The first topic is a proposal for achieving large-scale error correction with the surface code in a silicon donor based quantum computing architect

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Mayfield, James L. IV. "A Parameterized Framework for Quantum Computation." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342543546.

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Mommers, Cornelis Johannes Gerardus. "Universal Quantum Computation Using Discrete Holonomies." Thesis, Uppsala universitet, Materialteori, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444209.

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Qiang, Xiaogang. "Reconfigurable photonic circuits for quantum computation." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.707738.

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Babbush, Ryan Joseph. "Towards Viable Quantum Computation for Chemistry." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:17467325.

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Since its introduction one decade ago, the quantum algorithm for chemistry has been among the most anticipated applications of quantum computers. However, as the age of industrial quantum technology dawns, so has the realization that even “polynomial” resource overheads are often prohibitive. There remains a large gap between the capabilities of existing hardware and the resources required to quantum compute classically intractable problems in chemistry. The primary contribution of this dissertation is to take meaningful steps towards reducing the costs of three approaches to quantum computing

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McClean, Jarrod Ryan. "Algorithms Bridging Quantum Computation and Chemistry." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:17467376.

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The design of new materials and chemicals derived entirely from computation has long been a goal of computational chemistry, and the governing equation whose solution would permit this dream is known. Unfortunately, the exact solution to this equation has been far too expensive and clever approximations fail in critical situations. Quantum computers offer a novel solution to this problem. In this work, we develop not only new algorithms to use quantum computers to study hard problems in chemistry, but also explore how such algorithms can help us to better understand and improve our tradition

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47

Booth, Robert Ivan. "Measurement-based quantum computation beyond qubits." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS022.

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Le calcul quantique par mesure (MBQC) est un modèle alternatif de calcul quantique, qui utilise les propriétés de la mesure de systèmes quantiques intriqués pour effectuer des transformations sur une entrée. Il diffère fondamentalement du modèle de circuit quantique standard en ce que les calculs basés par mesures sont naturellement irréversibles. C'est conséquence inévitable de la description quantique de la mesures, mais qui soulève une question évidente : quand est-ce qu'un MBQC met-il en œuvre un calcul réversible ? Le m-calcul est un modèle formel pour les MBQC qui a la caractéristique re

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48

Williamson, Dominic. "Symmetry-protected adiabatic quantum transistors." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/13083.

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The standard circuit model of quantum computation differs in principle from a modern day computer chip in that computation is brought to stationary qubits in the former whereas information is routed spatially across a chip by transistors in the latter. Recently a model was proposed that addresses this key difference in implementation, it was dubbed the adiabatic quantum transistor model to emphasise its similarity to a classical transistor. Here we generalise this model to the setting of spin chains in inherently quantum phases of matter with a property called symmetry-protected order. Our gen

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Pontes, Renato Borges. "Investigação em eletrônica molecular: um estudo via cálculos de primeiros princípios." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-05052009-185629/.

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O iminente fim da \"era do Silício\" tem motivado a busca de novas tecnologias para utilização na indústria eletrônica. Dentre estas tecnologias, a eletrônica molecular explora o uso moléculas como elementos funcionais em dispositivos eletrônicos. Nesta Tese, realizamos cálculos de primeiros princípios baseados na teoria do funcional da densidade (DFT) para determinar as propriedades eletrônicas, estruturais e de transporte em sistemas com aplicação em eletrônica molecular. Para o benzeno-1,4-ditiol (BDT), considerado um sistema protótipo dentro da eletrônica molecular, correlacionamos a adsor

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Lee, Ciaran M. "Bounds on computation from physical principles." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:39451e29-3719-4cf4-a030-57c07e603380.

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Abstract:

The advent of quantum computing has challenged classical conceptions of which problems are efficiently solvable in our physical world. This raises the general question of what broad relationships exist between physical principles and computation. The current thesis explores this question within the operationally-defined framework of generalised probabilistic theories. In particular, we investigate the limits on computational power imposed by simple physical principles. At present, the best known upper bound on the power of quantum computers is that <b>BQP</b> is contained in <b>AWPP</b>, where

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