Aspects of three-dimensional gravity and two-dimensional conformal field theory

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Abstract/Contents

Abstract
In this thesis, we study aspects of three-dimensional gravity in Anti de Sitter (AdS) space by studying the holographically dual two-dimensional conformal field theory (CFT). We begin by describing general constraints on the elliptic genus of a two-dimensional supersymmetric conformal field theory which has a gravity dual with large radius in Planck units. We discuss the distinction between theories with supergravity duals and those whose duals have strings at the scale set by the AdS curvature, using symmetric orbifolds as a case study. We then move on to study extremal theories, conjectured to be dual to "pure" three-dimensional gravity. We first provide an example of an extremal chiral N=2 superconformal field theory at c=24. We then consider extremal CFTs at large central charge, and consider the quantum corrections to the classical spectrum. Our conjecture passes various consistency checks, especially when generalized to include theories with supersymmetry. Finally, we examine a specific top-down construction of AdS3/CFT2 from string theory, called the D1/D5 system. We examine the low-lying quarter BPS spectrum of the K3 symmetric orbifold CFT at various points in moduli space, and look at a more refined count than the ordinary elliptic genus. We do a decomposition of the spectra into N=4 characters, and show that at large N the character decomposition satisfies an unusual property, in which the degeneracy only depends on a certain linear combination of left- and right-moving quantum numbers, suggesting deeper symmetry structure.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2018; ©2018
Publication date 2018; 2018
Issuance monographic
Language English

Creators/Contributors

Author Benjamin, Nathan
Degree supervisor Kachru, Shamit, 1970-
Thesis advisor Kachru, Shamit, 1970-
Thesis advisor Hartnoll, Sean
Thesis advisor Silverstein, Eva, 1970-
Degree committee member Hartnoll, Sean
Degree committee member Silverstein, Eva, 1970-
Associated with Stanford University, Department of Physics.

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Nathan Benjamin.
Note Submitted to the Department of Physics.
Thesis Thesis Ph.D. Stanford University 2018.
Location electronic resource

Access conditions

Copyright
© 2018 by Nathan Saul Benjamin
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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