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Title: Aspects of gauge-string duality in SUSY and non-SUSY systems
Author: Bennett, Stephen Thomas
ISNI:       0000 0004 7425 4636
Awarding Body: Swansea University
Current Institution: Swansea University
Date of Award: 2014
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We study various aspects of type IIB supergravity backgrounds related to those of Klebanov-Strassler and Chamseddine-Volkov/Maldacena-Nunez, in the context of gauge-gravity duality. We first examine the structure which can be found in the family of supersymmetric solutions, and in particular the effect of adding flavour. We then turn to the problem of finding non-supersymmetric generalisations of the well-understood supersynnnetric solutions. Using a combination of analytic and numerical techniques we find a two-dimensional space of such solutions, corresponding to the baryonic branch of Klebanov-Strassler deformed by a SUSY-breaking irrelevant operator. We explore the parameter space in some detail, and find several interesting special cases and limits, including one in which supersymmetry is completely broken and unusual periodic behavior is present in the warp factors. Finally, we look in detail at some of the methods which can be used to probe the field theory corresponding to these kinds of backgrounds.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available