Dissertations / Theses on the topic 'String dualities'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 34 dissertations / theses for your research on the topic 'String dualities.'
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.
Godazgar, Mohammad Hadi. "Dualities in string theory." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610466.
Full textMarquart, Monika. "Applications of dualities in string theory." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965219267.
Full textPanizo, Daniel. "Type IIB compactifications and string dualities." Thesis, Uppsala universitet, Teoretisk fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-375025.
Full textRanjbar, Zidehi Arash. "String Dualities and Gaugings of Supergravity." Doctoral thesis, Universite Libre de Bruxelles, 2018. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/273799.
Full textDoctorat en Sciences
info:eu-repo/semantics/nonPublished
Alday, Luis Fernando. "Topics on string/gauge theories dualities." Doctoral thesis, SISSA, 2004. http://hdl.handle.net/20.500.11767/4039.
Full textHammou, Bouziane Amine. "BPS States and D1-D5 System in Theories with Sixteen Supercharges." Doctoral thesis, SISSA, 2000. http://hdl.handle.net/20.500.11767/4327.
Full textChemissany, Wissam Ali. "String effective actions, dualities, and generating solutions." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2008. http://irs.ub.rug.nl/ppn/.
Full textOkuda, Takuya Ooguri Hirosi. "Large N dualities in topological string theory /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-05232005-184326.
Full textLevkovich-Maslyuk, Fedor. "Exploring the exact spectrum in gauge/string dualities." Thesis, King's College London (University of London), 2016. https://kclpure.kcl.ac.uk/portal/en/theses/exploring-the-exact-spectrum-in-gaugestring-dualities(596d7e4f-6102-4363-8715-e04ff63704fd).html.
Full textMusaev, Edvard T. "U-dualities in Type II string theories and M-theory." Thesis, Queen Mary, University of London, 2013. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8610.
Full textKarkheiran, Mohsen. "Extending the Geometric Tools of Heterotic String Compactification and Dualities." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/98914.
Full textDoctor of Philosophy
String theory is the only physical theory that can lead to self-consistent, effective quantum gravity theories. However, quantum mechanics restricts the dimension of the effective spacetime to ten (and eleven) dimensions. Hence, to study the consequences of string theory in four dimensions, one needs to assume the extra six dimensions are curled into small compact dimensions. Upon this ``compactification," it has been shown (mainly in the 1990s) that different classes of string theories can have equivalent four-dimensional physics. Such classes are called dual. The advantage of these dualities is that often they can map perturbative and non-perturbative limits of these theories. The goal of this dissertation is to explore and extend the geometric limitations of the duality between heterotic string theory and F-theory. One of the main tools in this particular duality is the Fourier-Mukai transformation. In particular, we consider Fourier-Mukai transformations over non-standard geometries. As an application, we study the F-theory dual of a heterotic/heterotic duality known as target space duality. As another side application, we derive new types of small instanton transitions in heterotic strings. In the end, we consider F-theory compactified over particular manifolds that if we consider them as a geometry dual to a heterotic string, can lead to unexpected consequences.
Engquist, Johan. "Dualities, Symmetries and Unbroken Phases in String Theory : Probing the Composite Nature of the String." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5902.
Full textWeatherill, George James. "Flux compactifications of Type II string theories under non-perturbative dualities." Thesis, University of Southampton, 2010. https://eprints.soton.ac.uk/161173/.
Full textSpill, Fabian. "Yangians in integrable field theories, spin chains and gauge-string dualities." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6128.
Full textBetzler, Philip [Verfasser], and Dieter [Akademischer Betreuer] Lüst. "Dualities, extended geometries and the string landscape / Philip Betzler ; Betreuer: Dieter Lüst." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1215499868/34.
Full textWhiting, Catherine Ann. "Duality symmetries in string-inspired supergravity: T-dualities and the gauge/gravity correspondence." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/1796.
Full textVall, Camell Valentí [Verfasser], and Dieter [Akademischer Betreuer] Lüst. "Geometric and non-geometric backgrounds from string dualities / Valentí Vall Camell ; Betreuer: Dieter Lüst." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1168590884/34.
Full textGiangreco, Marotta Puletti Valentina. "On string integrability a journey through the two-dimensional hidden symmetries in the AdS/CFT dualities /." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-107326.
Full textKhan, Siraj. "Flows between Aharony and Giveon-Kutasov dualities in 3D field theories derived from type IIB string theories." Thesis, University of Liverpool, 2015. http://livrepository.liverpool.ac.uk/2048419/.
Full textGregory, Carolina Matté. "Supergravity duals to five-dimensional supersymmetric gauge theories." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:035f080b-1726-4953-bdf8-89cea2215572.
Full textFreyhult, Lisa. "Aspects of Yang-Mills Theory : Solitons, Dualities and Spin Chains." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4498.
Full textWiegandt, Konstantin [Verfasser], Harald [Akademischer Betreuer] Dorn, Prof Dr Gregory [Akademischer Betreuer] Korchemsky, and Jan [Akademischer Betreuer] Plefka. "Superconformal quantum field theories in string : gauge theory dualities / Konstantin Wiegandt. Gutachter: Harald Dorn ; Prof. Dr. Gregory Korchemsky ; Jan Plefka." Berlin : Humboldt Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2012. http://d-nb.info/1027529372/34.
Full textWiegandt, Konstantin [Verfasser], Harald Akademischer Betreuer] Dorn, Prof Dr Gregory [Akademischer Betreuer] Korchemsky, and Jan C. [Akademischer Betreuer] [Plefka. "Superconformal quantum field theories in string : gauge theory dualities / Konstantin Wiegandt. Gutachter: Harald Dorn ; Prof. Dr. Gregory Korchemsky ; Jan Plefka." Berlin : Humboldt Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2012. http://nbn-resolving.de/urn:nbn:de:kobv:11-100205442.
Full textSundin, Per [Verfasser], Sergey [Akademischer Betreuer] Frolov, Stefan [Akademischer Betreuer] Theisen, and Peter [Akademischer Betreuer] Uwer. "Perturbative quantization of superstring theory in Anti de-Sitter spaces : integrability in gauge / string dualities / Per Sundin. Gutachter: Sergey Frolov ; Stefan Theisen ; Peter Uwer." Berlin : Humboldt Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://d-nb.info/1015081290/34.
Full textChabrol, Lilian. "F-theory in Eight Dimensions : an Exceptional Field Theory and Heterotic String Perspective Geometry of ℝ+ × E3(3) exceptional field theory and F-theory F-theory and heterotic duality, Weierstrass models from Wilson lines." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASP018.
Full textOne of the most promising theories to unify quantum mechanics and general relativity is currently string theory. The search for a supersymmetric formulation of strings led to five consistent ten dimensional superstring theories which were later unified under the scope of M-theory. The fundamental aspect of this unification is the discovery of a web of dualities between the five superstring theories and eleven dimensional supergravity.This thesis addresses dualities in the context of F-theory in eight dimensions. F-theory is twelve dimensional and provides a non-perturbative formulation of type IIB supergravity with 7-branes. On the other hand exceptional field theory provides a U-dual formulation of type IIB supergravity and we therefore focus on the possible links between these two formulations. F-theory is also conjectured to be dual to the heterotic string in 8 dimensions. The gauge group appears radically differently in these two formulations. In F-theory it is interpreted as a particular algebraic structure of an elliptically fibered K3 surface, while on the heterotic string it is principally determined the Wilson lines. Although studied in the context of type IIB string theory, the explicit map between the moduli in F-theory and its heterotic dual are still quite unknown.In the first part of this thesis we present basic notions of string theory, compactifications, branes and dualities. In the second one, we show that R+ X E₃(₃) exceptional field theory in eight dimensions can incorporate aspects of F-theory in a specific setting, and in particular describes the monodromies of (p; q) 7-branes. Finally, in the third part we study the duality between F-theory compactified on an elliptic K3 surface and the heterotic string on a two-torus. We present how to construct elliptically fibered K3 surfaces via reflexive polytopes which can be understood in terms of Wilson lines in the dual heterotic string theory
Smedbäck, Mikael. "Topics on D-branes and Holography." Doctoral thesis, Uppsala University, Department of Theoretical Physics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4478.
Full textWe discuss various aspects of D-branes in string theory and holography in string theory and loop quantum gravity.
One way to study D-branes is from a microscopic perspective, using conformal field theory techniques. For example, we investigate the question of how D-branes can be introduced into orbifolded theories. Another way to study D-branes is from a space-time perspective. An example is provided by unstable D-branes, where we compute an effective action describing the decay of a bosonic D-brane.
The holographic principle is a proposed duality which suggests that a theory in any region has a dual description on the boundary. We explore two examples: (1) The area law for the entropy of a black hole in the framework of loop quantum gravity, related to particular regularizations of the area operator. (2) The AdS/CFT correspondence proposal, where we investigate a string pulsating on AdS using spin chains.
Duivenvoorden, Robert Jan. "Dual views of string impurities geometric singularities and flux backgrounds /." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2004. http://dare.uva.nl/document/73410.
Full textNiro, Pierluigi. "Strong coupling in 2+1 dimensions from dualities, holography, and large N." Doctoral thesis, Universite Libre de Bruxelles, 2021. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/327659.
Full textDoctorat en Sciences
info:eu-repo/semantics/nonPublished
Bastian, Brice. "Duality web between little string theories of type A." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1117/document.
Full textString theory remains one of our best candidates for a theory of quantum gravity. Until now it has not lived up to this goal. However, along the way it was realized that string theory can give us valu-able insights into a variety of subjects among which supersymmetric gauge theories by studying the low-energy worldvolume dynamics of branes. This embedding of gauge theories into string theory provides us with a different viewpoint that often allows us to use powerful geometric considerati-ons in order to obtain new results that are inaccessible from conventional methods. Even in the ab-sence of experimental confirmation of supersymmetry, its presence in this class of gauge theories provides us with a playground where different methods can be tested in an efficient way. Indeed, supersymmetry provides additional structure, rendering the underlying theory more rigid and thus simplifying computations and making results more accessible. One could dare to say that when a certain result can not be calculated in the presence of supersymmetry, there is probably not much hope of achieving it without supersymmetry. This stringy approach to gauge theories makes it pos-sible to unravel hidden dualities or to understand already known ones from a different perspective. An interesting class of quantum theories that are embedded into string theory are the so called little string theories. They have been discovered two decades ago. These six-dimensional theories were first obtained as the worldvolume theory of a stack of NS5 branes in the context of Type II string theory trough a particular decoupling limit that sends the string coupling constant to zero while kee-ping at the same time the string scale finite. In this limit, the resulting theory remains interacting but the bulk dynamics is decoupled, in particular gravity. As their name suggests, they contain strings. The tension of the little strings is proportional to the string scale, which is the only intrinsic scale in the theory. Furthermore, the little string theories enjoy T-duality similar to the critical string theory. They are thus non-local quantum theories. So the complexity of little string theory lies between that of local quantum field theories and full fledged critical string theory. This makes them interesting candidates for studying stringy phenomena in an easier setup where gravity is absent and to learn more about the worldvolume dynamics of the NS5 brane. At energies far below the string scale, they have a low-energy description in terms of quiver gauge theories, so their study can also give us insights into these kinds of theories. This local description breaks down as we reach the string scale and we must rely on the full little string theories. The main goal of this thesis is to study dualities between little string theories by using different dual constructions available in string theory. These allow us to attack the problem from different angles and they establish also a connection to geometric structures. This makes it possible to systematically analyse relations among different little string theories. We then confirm the validity of the newly found duality relations by using the so called instanton partition function. The latter is a completely non-perturbative object allowing us to establish the dualities as an exact result. This duality structure naturally extends to the low-energy description in terms of supersymmetric quiver gauge theories. Furthermore, we study the direct consequences of this duality web. We find interesting cases where the dimensional reduction from six to five dimensions simultaneously reduces the rank of the group and changes the matter content. Another result that we find is the presence of a hidden dihedral symmetry which acts in a highly non-trivial fashion on the spectrum of the underlying gauge theories
Okuda, Takuya. "Large N Dualities in Topological String Theory." Thesis, 2005. https://thesis.library.caltech.edu/1977/1/thesis.pdf.
Full textWe investigate the phenomenon of large N duality in topological string theory from three different perspectives: worldsheets, matrix models, and melting crystals.
In the first part, we utilize the technique of mirror symmetry to generalize the worldsheet derivation of the duality, originally given by Ooguri and Vafa for the A-model on the conifold, to the A-model on more general geometries. We also explain how the Landau-Ginzburg models can be used to perform the worldsheet derivation of the B-model large N dualities.
In the second part, we consider a class of A-model large N dualities where the open string theory reduces through the Chern-Simons theory on a lens space to a matrix model. We compute and compare the matrix model spectral curve and the Calabi-Yau geometry mirror to the closed string geometry, confirming the predictions of the duality.
Finally in the third part, we propose a crystal model that describes the A-model on the resolved conifold. This is a generalization of the crystal for C³. We also consider a novel unitary matrix model for the Chern-Simons theory on the three-sphere and show how the crystal model for the resolved conifold is derived from the matrix model. Certain non-compact D-branes are naturally incorporated into the crystal and the matrix model.
Ha, Tae-Won [Verfasser]. "String dualities and superpotential / vorgelegt von Tae-Won Ha." 2010. http://d-nb.info/1008809217/34.
Full textMarquart, Monika [Verfasser]. "Applications of dualities in string theory / von Monika Marquart." 2002. http://d-nb.info/965219267/34.
Full textBugden, Mark. "A Tour of T-duality: Geometric and Topological Aspects of T-dualities." Phd thesis, 2018. http://hdl.handle.net/1885/160672.
Full textPark, Jaemo. "Aspects of String Dualities--Orientifolds, F-Theory and Super D-Branes & the M5-Brane." Thesis, 1997. https://thesis.library.caltech.edu/10374/1/Park_J_1997.pdf.
Full textWe probe string dualities by using the orientifold and F-theory, and by investigating world volume actions of super D-branes and super M-branes.
We first study orientifolds in various dimensions. We construct orientifolds dual to M-theory compactified on the Klein bottle and on the Möbius band, respectively. Six-dimensional orientifolds with N=1 supersymmetry are constructed. They have multiple tensor multiplets, which cannot be obtained by the conventional Calabi-Yau compactifications. We find F-theory duals for some of these models, thereby making manifest the phase transitions involving the tensionless strings these models can have.
We construct orientifold and F-theory duals of the heterotic string models constructed by Chaudhuri, Hockney and Lykken (CHL) and study N=2 supersymmetric F-theory vacua in six dimensions.
Next, we construct the supersymmetric world volume action of the M-theory 5-brane in a flat eleven-dimensional background. Finally, dual D-brane actions are obtained by carrying out a duality transformation of the world volume gauge field of the D-brane and their properties are studied.