Abstract/Details

Transport coefficients and universality in hot strongly coupled gauge theories


2010 2010

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Abstract (summary)

The gauge/gravity duality provides a valuable opportunity to study the behavior of relativistic fluids described by some strongly-interacting non-Abelian gauge theories. However, as yet no gravity duals are known for the field theories that are currently used to describe nature. Thus, it is particularly interesting to search for universal properties of theories with gravity duals. This dissertation discusses a broad class of theories with gravity duals, and it is shown that at high temperatures, the speed of sound squared is bounded from above by one-third of the speed of light squared. It is conjectured that this may be a universal property of theories with gravity duals. It is also shown that the temperature dependence of a number of transport coefficients takes a universal form in the high-temperature limit. In particular, in a high-temperature expansion, the power law of the leading correction away from the infinite temperature limit is universal for all of the transport coefficients, and is the same as that of the speed of sound squared.

Indexing (details)


Subject
Nuclear physics;
Particle physics
Classification
0610: Nuclear physics
0798: Particle physics
Identifier / keyword
Pure sciences; Gauge-gravity duality; Hydrodynamics; Strongly-interacting
Title
Transport coefficients and universality in hot strongly coupled gauge theories
Author
Cherman, Aleksey
Number of pages
113
Publication year
2010
Degree date
2010
School code
0117
Source
DAI-B 71/07, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9781124073743
Advisor
Cohen, Thomas D.
Committee member
Bedaque, Paulo F.; Chacko, Zacharia; Hall, Carter; Walters, William
University/institution
University of Maryland, College Park
Department
Physics
University location
United States -- Maryland
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
3409689
ProQuest document ID
734386271
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/734386271
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