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 61 for “"Conformal field theory"”.
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Fusion of Perturbed Defects in Conformal Field Theory
<p>The infinite-dimensional symmetry algebra of a conformal field theory (CFT), the Virasoro algebra, is generated by the holomorphic and anti-holomorphic part of the stress tensor. Besides such 'chiral symmetries' the CFT also has an integrable symmetry, that is, infinite families of commuting …
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On Gaussian multiplicative chaos and conformal field theory
This thesis is concerned with conformally invariant stochastic processes in two dimensions and their applications to conformal field theory (CFT). The main probabilistic objects are the Gaussian free field (GFF) and the random geometries associated to it. Especially, we are interested in Gaussian …
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Conformal Field Theory Descriptions of String Initial Conditions and Quantum Entanglement Entropy
… quantum mechanics and in 1+1 dimensional quantum field theories. We shall then discuss entanglement entropy for Chem-Simons gauge theories, which is of direct interest in theoretical constructions of topological quantum computers.
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Tachyon condensation in open string field theory and the {u03B2}{u03B3} conformal field theory
… Schnabl's analytic solution of the string field theory equations in terms of the {u03B2}{u03B3} CFT. Such background-dependent solutions may be useful for the construction of tachyon lump solutions. Using the Schnabl solution's explicit description in terms of coordinate-transformed …
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Tachyon condensation in open string field theory and the {u03B2}{u03B3} conformal field theory
… Schnabl's analytic solution of the string field theory equations in terms of the {u03B2}{u03B3} CFT. Such background-dependent solutions may be useful for the construction of tachyon lump solutions. Using the Schnabl solution's explicit description in terms of coordinate-transformed …
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Large Gauge Transformations and Black Hole Entropy
… in detail at the BMS group and then describe the conformal symmetries of asymptotically flat spacetime. These represent an extension of the BMS group that we call the $\textit{conformal BMS group}$. Second, we explore the action of these large diffeomorphisms in the context of black holes. The …
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Applying AdS/CFT to many body systems
In this thesis, we model a many body system by a conformal field theory, and calculate the correlation function of 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 …
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Aspects of the Ising and tricritical Ising models
… of two- dimensional systems and in String theory as building blocks of the string world sheet theory. The first part of the thesis is concerned with the derivation of differential equations for the critical four-point function in the Ising model. We <br/>present a method which provides the …
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Aspects of branes and orbifolds in string theory
… of this thesis is branes and orbifolds in string theory, with some digression towards other directions in the final chapters. After reviewing background material on D-branes and orbifolds, along with some mathematical fundamentals, I describe the following results. First, a classification of …
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The propagator for graviton modes in supergravity on ADS5 x S5
… duality between SUGRA on AdSd and the conformal field theory (CFT) on the (d - 1)-dimensional boundary of AdS d. The propagator is a symmetric bitensor and thus can be written as a linear combination of five basis tensors. A system of equations for the five coefficient functions is …
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On Gaussian Multiplicative Chaos
… foundation for Kolmogorov-Obukhov-Mandelbrot theory of energy dissipation in developed turbulence. It has attracted a lot of attentions from the mathematics community in the last decade, playing a pivotal role in the probabilistic formulation of Liouville conformal field theory, as well as …
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Connections on conformal blocks
… of principal G-bundles on X using ideas from conformal field theory. We describe this category in terms of the action of infinitesimal Hecke functors on the category of quasi-coherent sheaves on Bung. This family of functors, parametrized by the Ran space of X, acts by averaging a …
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Bubble nucleation in finite-density gauge theory using the AdS/CFT correspondence
We will be using the N = 4 Super Yang-Mills theory as a "toy model" of QCD to model the spontaneously broken symmetry (Higgsing) SU (Nc) → SU (Nc − n) × U (n). We model the the instability of the phase with unbroken color symmetry (”normal phase”) and the mechanism with which we would have the …
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Various Manifestation of Non -Abelian Statistics in Condensed Matter Systems
… ground states. Our calculation provides a conformal field theory explanation of why certain transitions between ground states are forbidden. It is because taking a quasihole around a generator of the torus can change the fusion channel of the two quasiholes, and this requires a change of …
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Something to do with Schrödinger spacetimes
… made toward building a realistic gravity/gauge theory duality for a non-relativistic conformal field theory. In particular, we highlight many of the computational tools necessary for such a program before introducing one such model duality. The model presented exhibits the symmetry group of …
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