Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 147 for “"CFT"”.
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CFT correlation functions from AdS/CFT correspondence
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1999.
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Spiky strings and the AdS/CFT correspondence
… of the “large” spikes. According to the AdS/CFT correspondence, strings moving in AdS3 × S1 should be dual to single trace operators in the sl(2) sector of N = 4 super Yang- Mills theory. The corresponding one-loop spectrum in perturbation theory may also be computed through integrability …
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Aspects of the PP wave/ CFT correspondence
… thesis, I discuss various aspects of the PP wave/CFT duality as a concrete example of the gauge-gravity correspondence.
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Applying AdS/CFT to many body systems
… a scalar operator in this theory using the AdS/CFT correspondence. We describe numerical techniques for calculating the retarded Green function of the operator. The results suggest that further improvement in the robustness of the codes is needed.
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On D-brane configurations and ADS/CFT duality
… branes appearing in relation to the AdS/CFT conjecture. After a general introductory chapter to the strings, branes and dualities, each research work appears in a separate part of the thesis (parts I, II). Conclusions are given at the end of each part. In the first part we introduce …
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Zero sound modes in the AdS/CFT correspondence
… living around the charged black hole of an AdS/CFT spacetime. In particular, we show that these bulk modes cause corresponding singularities in the correlation functions of boundary gauge fields. Possible implications for the study of non-Fermi liquids are discussed.
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Geometry and entanglement in AdS/CFT and beyond
… perturbative framework to geometries beyond AdS/CFT. On the field theory we side, we discuss perturbation theory with irrelevant deformations; on the gravity side, we study cutoff AdS and D3 brane geometry. The result is not conclusive, but we believe that the framework we set up, along with …
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Study of the Ads/CFT correspondence in low dimensions
Tesis doctoral con mención internacional y por compendio de publicaciones
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Phase transition of a vector operator in AdS-CFT
… operator in finite density system through AdS-CFT correspondence. By numerically solving the wave equations of the corresponding vector field in a AdS-RN black hole background geometry, we found poles of the retarded Green's functions in momentum space, which indicate possible instabilities. We …
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Aspects of finite temperature field theories in Ads/CFT
… theories at finite temperature using the AdS/CFT correspondence. I present a general proof of an "inheritance principle" satisfied by a weakly coupled SU(N) (or U(N)) gauge theory with adjoint matter on a class of compact manifolds (like S3). In the large N limit, finite temperature …
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Generation and classification of AdS solutions and their CFT interpretation
… resulta relevante para nuevas dualidades de SCFT en tres dimensiones. Nuestros esfuerzos nos conducirán así mismo a nuevos candidatos AdS3xS2 para límites near-horizon de agujeros negros en dimensiones altas, motivando así una extensión de la clase conocida de estas geometrías. Por último, se …
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Numerical Modeling of Composite Systems: Composite CFT Connections and Composite Beams
… goal of this research is to numerically evaluate CFTs or SRCs members and their connections subjected to axial, shear, and flexural load. Predicting composite connection behavior is exceptionally challenging due to the coupled behavior of the steel and concrete, the residual stresses in the steel, …
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Bubble nucleation in finite-density gauge theory using the AdS/CFT correspondence
… the anti de-Sitter/conformal field theory (AdS/CFT) correspondence. Lastly, we look at the rotating black brane solution and the results for the bubble nucleation.
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Gauge/Gravity Duality: Recovering the Bulk from the Boundary using AdS/CFT
… principle, within the context of the AdS/CFT Correspondence in the large t'Hooft limit, we investigate how the geometry of certain highly symmetric bulk spacetimes can be recovered given information of physical quantities in the dual boundary CFT. In particular, we use the existence of …
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Study of the AdS/CFT correspondence and its applications to strongly coupled phenomena
La correspondencia AdS/CFT, o también llamada dualidad holográfica, ha llegado a ser una de las herramientas más potentes para describir sistemas físicos en donde las interacciones entre sus constituyentes no se pueden describir mediante análisis perturbativo. En la presente tesis, se han examinado …
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On defect CFT and path integral methods for entanglement in quantum field theories
… few chapters of the thesis, we will study defect CFT methods based on the replica trick for characterizing quantum information in quantum field theories. We calculate a coefficient that characterizes the strength of the two point function of the displacement operator in the replica twist defect …
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Analysis of supersymmetric field theories via AdS/CFT, brane setups and matrix models
N = 1 theories whose matrix model spectral curve develops Argyres-Douglas singularities are constructed. The large N expansion breaks down at the critical points with domain wall tensions scaling as a fractional power of N. However, there exist double scaling limits that are conjectured to define a …
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Experimental database, analysis and design of noncompact and slender concrete-filled steel tube (CFT) members
… noncompact and slender rectangular and circular CFT members under axial compression, flexure, and combined axial and flexural loading. This research presents the development and evaluation of these design provisions. Available experimental databases of CFT members are reviewed, and a new …
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Perturbative and non perturbative effects in the Standard Model and orbifolded ADS/CFT based theories
We study some perturbative and nonperturbative effects in the framework of the Standard Model of particle physics. In particular we consider the time dependence of the Higgs vacuum expectation value given by the dynamics of the StandardModel and study the non-adiabatic production of both bosons and …
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Robustness and infrared sensitivity of various observables in the application of AdS/CFT to heavy ion physics
We investigate the robustness with respect to the introduction of nonconformality of five properties of strongly coupled plasmas that have been calculated in K = 4 supersymmetric Yang-Mills (SYM) theory at nonzero temperature, motivated by the goal of understanding phenomena in relativistic heavy …
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