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Dissertations / Theses on the topic 'D-branes'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Lambert, N. D., I. Sachs, and Andreas Cap@esi ac at. "String Loop Corrections to Stable Non--BPS Branes." J. High Energy Phys. 02 (2001), paper 018, 2000. ftp://ftp.esi.ac.at/pub/Preprints/esi954.ps.

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2

Reis, Rui Miguel Goncalves dos Reis. "K-homology and D-branes." Thesis, Heriot-Watt University, 2007. http://hdl.handle.net/10399/2149.

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In the spirit of the work of P. Baum and R. Douglas in K-homology, we construct a set of abelian groups which define homotopy functors from the category of finite CWpairs onto the category of graded abelian groups. These we prove to be isomorphic to the geometric representation of KO-homology, the homology theory associated to KO-theory, constructed by M. Jakob. It is known that KO-homology has an analytic representation defined in terms of the C*-algebra of continuous functions over a space and of Kasparov's KK-theory. The third chapter presents our proof of the equivalence between this analy

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3

Jia, Bei. "D-branes and K-homology." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/32039.

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In this thesis the close relationship between the topological $K$-homology group of the spacetime manifold $X$ of string theory and D-branes in string theory is examined. An element of the $K$-homology group is given by an equivalence class of $K$-cycles $[M,E,\phi]$, where $M$ is a closed spin$^c$ manifold, $E$ is a complex vector bundle over $M$, and $\phi: M\rightarrow X$ is a continuous map. It is proposed that a $K$-cycle $[M,E,\phi]$ represents a D-brane configuration wrapping the subspace $\phi(M)$. As a consequence, the $K$-homology element defined by $[M,E,\phi]$ represents a class of

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4

Rovai, Antonin. "Emergent geometry from D-Branes." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209425.

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In this thesis, we explain and illustrate on several examples how to derive supergravity solutions by computing observables in the corresponding dual, lower-dimensional field theory.<p>In particular, no a priori knowledge on the gravitational dual is assumed, including its dimensionality. The basic idea to construct the pre-geometric models is to consider the world-volume theory of probe D-branes in the presence of a large number N of higher-dimensional background branes. In the standard decoupling limit, the probes are moving only in the flat directions parallel to the background D-branes. We

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5

Winters, David J. "Aspects of D-branes : from branes in motion to meson spectroscopy." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84855.

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We discuss various aspects of D-branes, ranging from their basic properties as extended objects within string theory to their application, via the AdS/CFT correspondence, to the physics of gauge theories. Our initial emphasis is on the description of time-dependent, yet supersymmetric, brane configurations and to this end we first provide a review of established results on D-branes. We then investigate various supersymmetric brane intersections. Motivated by the recent results on supertubes, we investigate general constraints under which parallel brane-antibrane configurations are super

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6

Scheidegger, Emanuel. "D-branes on Calabi-Yau spaces." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963248308.

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7

Wurtz, Albrecht. "Conformal Field Theory and D-branes." Doctoral thesis, Karlstad University, Faculty of Technology and Science, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1346.

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<p>The main topic of this doctoral thesis is D-branes in string theory, expressed in the language of conformal field theory. The purpose of string theory is to describe the elementary particles and the fundamental interactions of nature, including gravitation as a quantum theory. String theory has not yet reached the status to make falsifiable predictions, thus it is not certain that string theory has any direct relevance to physics. On the other hand, string theory related research has led to progress in mathematics.</p><p>We begin with a short introduction to conformal field theory and some

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8

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.

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<p>We discuss various aspects of D-branes in string theory and holography in string theory and loop quantum gravity. </p><p>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. </p><p>The holographic principle is a proposed duality which suggests that a theory

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9

Scheidegger, Emanuel Gilbert. "D-branes on Calabi-Yau Spaces." Diss., lmu, 2001. http://nbn-resolving.de/urn:nbn:de:bvb:19-4451.

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10

Smedbäck, Mikael. "Topics on D-branes and holography /." Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4478.

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11

Sigalov, Ilya. "D-branes and string field theory." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/39560.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.<br>Includes bibliographical references (p. 115-127).<br>In this thesis we study the D-brane physics in the context of Witten's cubic string field theory. We compute first few terms the low energy effective action for the non-abelian gauge field A, from Witten's action. We show that after the appropriate field redefinition which relates the string field theory variables to the worldsheet variables one obtains the correct Born-Infeld terms. We then compute the rolling tachyon solution in the context of string field t

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12

Fredenhagen, Stefan. "Dynamics of D-branes in curved backgrounds." Doctoral thesis, [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965704017.

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13

Pawelczyk, Jacek, Soo-Jong Rey, and jacek pawelczyk@physik uni-muenchen de. "Ramond--Ramond Flux Stabilization of D--Branes." ESI preprints, 2000. ftp://ftp.esi.ac.at/pub/Preprints/esi955.ps.

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14

Wulff, Linus. "Strings, boundary fermions and coincident D-branes." Doctoral thesis, Stockholm : Department of Physics, Stockholm University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-6576.

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15

O'Driscoll, D. C. "D-branes and orientifolds in string theory." Thesis, Swansea University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638350.

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We examine the interplay of supersymmetry and compactification on D-branes and orientifold planes using the framework of superstring theory. We explore issues pertinent to geometrical descriptions of these theories and dualities among them.

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16

Barrett, Jessica K. "Aspects of D-branes as BPS monopoles." Thesis, Durham University, 2004. http://etheses.dur.ac.uk/3160/.

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We investigate some of the properties of D-brane configurations which behave as BPS monopoles. The two D-brane configurations we will study are the enhançon and D-strings attached to D3-branes.We will start by investigating D3-branes wrapped on a K3 manifold, which are known as enhançons. They look like regions of enhanced gauge symmetry in the directions transverse to the branes, and therefore behave as BPS monopoles. We calculate the metric on moduli space for n enhançons, following the methods used by Ferrell and Eardley for black holes. We expect the result to be the higher-dimensional gen

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17

Parra, Milián S. [UNESP]. "Classical solutions for D-branes in AdS." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/127600.

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Made available in DSpace on 2015-09-17T15:24:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-08-12. Added 1 bitstream(s) on 2015-09-17T15:47:47Z : No. of bitstreams: 1 000844745.pdf: 560125 bytes, checksum: 6adc853f60c4ad9ad7a288228990dea7 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>No presente trabalho comprometemo-nos ao estudo de soluções clássicas para D-branas no espaço de Anti-de Sitter, as quais surgem da solução de órbita do subgrupo estabilizador de um ponto na fronteira no espaço AdS. Começamos por fazer uma breve revisão da teoria de s

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18

Parra, Milián S. (Segundo). "Classical solutions for D-branes in AdS /." São Paulo, 2014. http://hdl.handle.net/11449/127600.

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Orientador: Andrey Yuryevich Mikhaylov<br>Banca: Nathan Jacob Berkovits<br>Banca: Vladimir Perchine<br>Resumo: No presente trabalho comprometemo-nos ao estudo de soluções clássicas para D-branas no espaço de Anti-de Sitter, as quais surgem da solução de órbita do subgrupo estabilizador de um ponto na fronteira no espaço AdS. Começamos por fazer uma breve revisão da teoria de supercordas e apresentamos algumas características da geometria do espaço AdS. Então fazemos uma discussão sobre a ação efetiva a baixas energias e, por último, escrevemos a ação de uma D3-brana no espaço AdS5. O estudo de

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19

Feng, Bo 1971. "D-branes, gauge theory and string field theory." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8491.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 2002.<br>Includes bibliographical references (p. 245-262).<br>In this thesis, we present several works done in last three years. They include three directions in the string theory. In the first direction, we use the brane setup to find mirror pairs of SO(n) and Sp(k) gauge groups for N = 4 three-dimensional gauge field theories. To reach this result, we analyze carefully the s-configuration and predict a nontrivial string dynamics, i.e., the splitting of branes on the orientifold planes. In the second direction, we develo

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20

Valentino, Alessandro. "K-theory, D-branes and Ramond-Ramond fields." Thesis, Heriot-Watt University, 2008. http://hdl.handle.net/10399/2175.

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This thesis is dedicated to the study of K-theoretical properties of D-branes and Ramond-Ramond fields. We construct abelian groups which define a homology theory on the category CW-complexes, and prove that this homology theory is equivalent to the bordism 3n of KO-homology, the dual theory to KO-theory. We construct an isomorphism between our geometric representation and the SLUdlytic representation of KO-homology, which induces a natural equivalence of homology functors. We apply this framework to describe mathematical properties of D-branes in type I String theory.

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21

Berenstein, David Eliecer. "Dynamical aspects of D-branes and matrix theory /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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22

Maraventano, Sara. "Superspace formulation of higher-derivative actions from D-branes." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15828/.

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Higher-derivative operators play a fundamental role in the development of effective field theories. This thesis deals with the study of such operators in the context of the effective low-energy theory of type IIB superstring theory. In particular, we revisit a past attempt to find the supersymmetric form of the higher-derivatives for the D7-brane modulus in an orbifold compactification at the level of a globally supersymmetric theory. These higher-derivatives descend from the Dirac-Born-Infeld action of the D7-brane. Starting from the component Lagrangian the task is to identify the supersym

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23

Schäfer-Nameki, Sakura. "D-branes in boundary field theory and K-theory." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620017.

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24

Ribault, Sylvain Gae͏̈tan. "Cordes et D-branes dans les espaces-temps courbes." Palaiseau, Ecole polytechnique, 2003. http://www.theses.fr/2003EPXX0009.

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25

Quella, Thomas. "Asymmetrically gauged coset theories and symmetry breaking D-branes." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2003. http://dx.doi.org/10.18452/14909.

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Auf sehr kleinen Längenskalen erlaubt die Weltflächenbeschreibung über zweidimensionale konforme Feldtheorien eine störungstheoretische Definition der String-Theorie. Viele strukturelle Eigenschaften und phänomenologische Implikationen der letzteren können mit Hilfe von D(irichlet)-Branen untersucht werden, die in der zugrunde liegenden Weltflächentheorie durch konforme Randbedingungen beschrieben werden. Etliche interessante Hintergründe für die String-Theorie erhält man über Gruppenmannigfaltigkeiten und Coset-Modelle. Neben wichtigen Beispielen wie SL(2,R), SU(2) und Gepner-Modellen, die f

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26

Closset, Cyril. "Studies of fractional D-branes in the gauge/gravity correspondence & flavored Chern-Simons quivers for M2-branes." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210125.

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Cette thèse intitulée « Studies of fractional D-branes in the gauge/gravity correspondence & Flavored Chern-Simons quivers for M2-branes » se place dans le cadre de la théorie des cordes, en physique théorique. Elle consiste en une introduction suivie de deux parties. Dans l'introduction sont résumés les différents outils de théorie des cordes qui seront utilisés. <p>\<br>Doctorat en Sciences<br>info:eu-repo/semantics/nonPublished

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27

Dawson, Peter Dale. "Effective actions and charges of D-branes in curved space-time." Title page, abstract and contents only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phd2727.pdf.

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Bibliography: leaves 181-190. This thesis firstly investigates K-invariant and supersymmetric actions of D-branes in curved space-time. Following this, research into charges of D-branes in a group manifold are studied. In particular, the charge groups are determined for the symmetry preserving (or untwisted) D-branes on a compact, simple, connected, simply connected group manifold. The purpose of this research is to determine these charge groups in order that they can be compared to the charge groups predicted by twisted K-theory for D-branes in a group manifold, thus providing a future import

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28

Goi, Enrico. "Quelques aspects de la brisure de supersymétrie en théorie des cordes de types IIA : vides et déformations." Paris 7, 2011. http://www.theses.fr/2011PA077172.

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Cette thèse porte sur l'étude des compactifîcations non-supersymétriques avec flux en théorie des cordes de type IIA. Après une introduction aux théories de type II, nous introduisons le cadre mathématique de la Géométrie Complexe Généralisée, celle ci donne une interprétation géométrique des vides supersymétriques et un principe permettant de les organiser. Nous introduisons la classe des solvmanifolds, qui ont été largement utilisées comme variétés de compactification, et discutons leurs propriétés mathématiques, notament les critères de compacité. Nous présentons ensuite notre premier exemp

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29

Liyanage, Christoph [Verfasser]. "Yukawa Couplings from D-branes on non-factorisable Tori / Christoph Liyanage." Bonn : Universitäts- und Landesbibliothek Bonn, 2018. http://d-nb.info/1167856961/34.

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30

Krippendorf, Sven-Ludwig. "D-brane model building and moduli stabilisation in type IIB string theory." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609632.

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31

Moskovic, Micha. "Holographic backgrounds from D-brane probes." Doctoral thesis, Universite Libre de Bruxelles, 2014. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209307.

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The gauge/string correspondence provides a non-perturbative definition of string theory and hence quantum gravity in some backgrounds, making it possible to translate statements about strongly coupled quantum field theories into results about gravity. <p><p>In this thesis, we focus on the derivation of holographic backgrounds from the field theory, without using any supergravity input. Instead, we rely crucially on the addition of probe D-branes to the stack of D-branes generating the background.<p>From the field theory description of the probe branes in the presence of the background branes,

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32

Couchoud, Nicolas. "D-branes et orientifolds dans des espaces courbes ou dépendant du temps." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2004. http://tel.archives-ouvertes.fr/tel-00008263.

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Dans cette thèse nous étudions la théorie des cordes en présence de<br />D-branes et éventuellement d'orientifolds dans des espaces courbes ou dépendants du temps. Notre étude vise à comprendre certains aspects des espaces courbes et dépendant du temps, notamment à cause de leur importance en cosmologie.<br /><br />Le premier chapitre introduit quelques bases de la théorie des cordes.<br /><br />Le deuxième chapitre étudie les cordes non orientées sur les groupes compacts SU(2) et SO(3) : après un rappel des résultats connus sur les D-branes dans ces espaces, nous présentons nos résultats sur

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33

Franco, Sebastián Federico. "Duality and dynamics of supersymmetric field theories from D-branes on singularities." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32298.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2005.<br>Includes bibliographical references (p. 359-373).<br>We carry out various investigations regarding gauge theories on the worldvolume of D-branes probing toric singularities. We first study the connection that arises in Toric Duality between different dual gauge theory phases and the multiplicity of fields in the gauged linear sigma models associated with the probed geometries. We introduce a straightforward procedure for the determination of toric dual theories and partial resolutions based on the (p, q) web des

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34

Goodsell, Mark Dayvon. "One loop phenomenology of type II string theory : intersecting d-branes and noncommutativity." Thesis, Durham University, 2007. http://etheses.dur.ac.uk/2915/.

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We examine one loop amplitudes for open and closed strings in certain D-brane configurations, and investigate the consequences for phenomenology. Initially we consider open strings at D6-brane intersections. We develop techniques for one-loop diagrams. The one-loop propagator of chiral intersection states is calculated exactly and its finiteness is shown to be guaranteed by RR tadpole cancellation. The result is used to demonstrate the expected softening of power law running of Yukawa couplings at the string scale. We also develop methods to calculate arbitrary TV-point functions at one-loop,

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35

Irie, Hirotaka. "String fields, matrix models and D-branes in (p,q) minimal superstring theory." 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/136869.

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36

Mattiello, Luca [Verfasser], and Ivo [Akademischer Betreuer] Sachs. "On instantons and finite-size D-Branes in string theory / Luca Mattiello ; Betreuer: Ivo Sachs." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1196968578/34.

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37

Mayes, Van Eric. "Phenomenology of heterotic and type II orientifold string models." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1597.

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38

Casagrande, Gabriele. "Linear and nonlinear supersymmetry in field and string theory." Electronic Thesis or Diss., Institut polytechnique de Paris, 2025. http://www.theses.fr/2025IPPAX011.

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L'état actuel de la physique des hautes énergies se divise en deux branches. D'un côté, nous avons le Modèle Standard des particules, testé avec grande précision et confirmé comme théorie décrivant la physique à l'échelle du TeV. De l'autre, cette théorie est incomplète. D'abord, elle doit être couplée à la gravité, selon la relativité générale d'Einstein. Ensuite, une description quantique des interactions gravitationnelles doit être développée, comme pour les autres forces. Le seul exemple qui a unifié cela jusqu'ici est la théorie des cordes, proche de l'échelle de Planck. Selon le paradigm

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39

Condeescu, Cezar. "Non-perturbative effects in string theory." Palaiseau, Ecole polytechnique, 2010. http://pastel.archives-ouvertes.fr/docs/00/56/57/62/PDF/Phd-thesis.pdf.

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On étudie les effets non-perturbatifs généré par des branes instantoniques Euclidiens en compactifications de la théorie des cordes de type I/II avec orientifolds et D-branes magnétisées. Le focus est sur les instantons qui peuvent générer des corrections au superpotentiel. Une condition nécessaire est que les instantons doivent enrouler des cycles rigides. On considère la compactification de la théorie de Type I (IIB) sur l'orientifold T^6/Z_2xZ_2 avec torsion discrète et D-branes magnétisées. Les instantons enroulant le même cycle que l'O-plane exotique (requis par la torsion discrète) ont l

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40

百武, 慶文. "Dielectric効果およびMyers効果によるD-branesの解析". 京都大学 (Kyoto University), 2002. http://hdl.handle.net/2433/149971.

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Condeescu, Cezar. "Effets Non-perturbatifs en Théorie des Cordes." Phd thesis, Ecole Polytechnique X, 2010. http://pastel.archives-ouvertes.fr/pastel-00565762.

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On étude les effets non-perturbatifs généré par des branes instantoniques Euclidiens en compactifications de la théorie des cordes de type I/II avec orientifolds et D-branes magnétisées. Le focus est sur les instantons qui peuvent générer des corrections au superpotentiel. Une condition nécessaire est que les instantons doivent enrouler des cycles rigides. On considère la compactification de la théorie de Type I (IIB) sur l'orientifold T^6/Z_2xZ_2 avec torsion discrète et D-branes magnétisées. Les instantons enroulant le même cycle que l'O-plane exotique (requis par la torsion discrète) ont la

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42

Benichou, Raphaël. "Supercordes, théories conformes et dualité holographique." Paris 6, 2009. https://tel.archives-ouvertes.fr/tel-00392687.

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Cette thèse se consacre à l'étude de la théorie des cordes, en utilisant une description exacte en termes de théories conformes bidimensionnelles. Dans une première partie, nous considérons une famille de solutions exactes de la théorie des cordes appelées modèles de Gepner non-compacts. Nous avons étudié le spectre des cordes fermées et ouvertes dans ces modèles, en mettant l'accent sur les états localisés. Dans une deuxième partie, nous étudions la quantification de la corde en présence de champs Ramond-Ramond. Nous avons généralisé la procédure de Buscher pour obtenir les règles de T-dualit

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43

Benichou, Raphael. "Supercordes, théories conformes et dualité holographique." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2009. http://tel.archives-ouvertes.fr/tel-00392687.

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Cette thèse se consacre à l'étude de la théorie des cordes en utilisant les outils des théories conformes bidimensionnelles. Dans la première partie, une famille de solutions non-compactes et courbes est etudiées : les modèles de Gepner non-compacts. Dans la deuxième partie, on se concentre sur des problèmes liés à la quantification de la corde en présence de flux RR.

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44

Choi, Jaewang. "Deformation of N=4 SYM with space-time dependent couplings." Kyoto University, 2018. http://hdl.handle.net/2433/232239.

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45

Braun, Volker Friedrich. "K-theory and exceptional holonomy in string theory." Doctoral thesis, [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965401650.

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46

Israel, Dan. "Supercordes en espace-temps courbe et theories conformes." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2004. http://tel.archives-ouvertes.fr/tel-00007152.

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Cette these est consacree a l'etude des theories de supercordes dans les espaces-temps courbes. Nous etudions en particulier l'espace des modules des solutions de NS5-branes et de cordes fondamentales, a l'aide des techniques de deformations marginales de theories conformes. Parmi les exemples etudies se trouvent les espaces-temps anti-de Sitter a trois ou deux dimensions, differentes limites de decouplage de la theorie des petites cordes et l'univers de Goedel. Nous etudions egalement les fonctions de partitions de ces theories conformes, ainsi que les D-branes de certaines d'entre elles. Les

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Stiffler, Kory M. "A walk through superstring theory with an application to Yang-Mills theory: k-strings and D-branes as gauge/gravity dual objects." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/744.

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Superstring theory is one current, promising attempt at unifying gravity with the other three known forces: the electromagnetic force, and the weak and strong nuclear forces. Though this is still a work in progress, much effort has been put forth toward this goal. A set of specific tools which are used are gauge/gravity dualities. This thesis consists of a specific implementation of gauge/gravity dualities to describe k-strings of strongly coupled gauge theories as objects dual to Dpbranes embedded in confining supergravity backgrounds from low energy superstring field theory. Along with super

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Görlich, Lars. "N = 1 and non-supersymmetric open string theories in six and four space-time dimensions." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2003. http://dx.doi.org/10.18452/14978.

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Die vorliegende Arbeit beinhaltet ein einführendes Kapitel über Orbifold-Konstruktionen in dem neben rudimentären Grundlagen bereits speziellere Themen wie Diskrete Torsion und asymmetrische Orbifold-Gruppen behandelt werden. Als Beispiele für Orbifolde werden Kompaktifizierungen auf Tori sowie das asymmetrische T^4/Z(3)^L x Z(3)^R Orbifold behandelt. Danach wird eine allgemein gehaltene Einführung in Orientifolde gegeben, einschließlich des offenen String Sektors samt Chan-Paton Freiheitsgraden. Die darauf folgenden Kapitel 4-7 behandeln von mir durchgeführte Forschungsarbeiten. Kapitel 4

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Rajan, Peter. "Spin-offs from Stretching a Point : Strings, Branes and Higher Spin." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4521.

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EDALATI, AHMADSARAEI MOHAMMAD. "TOPICS IN SUPERSYMMETRIC GAUGE THEORIES AND THE GAUGE-GRAVITY DUALITY." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1184947984.

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