Journal
PHYSICS LETTERS B
Volume 681, Issue 2, Pages 200-203Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2009.10.007
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Funding
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Research Innovation
- NSERC Discovery
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We study effective relaxation time of viscous hydrodynamics of strongly coupled non-conformal gauge theory plasma using gauge theory/string theory correspondence. We compute leading corrections to the conformal plasma relaxation time from the relevant deformations due to dim-2 and dim-3 operators. We discuss in details the relaxation time tau(eff) of N = 2* plasma. For a certain choice of masses this theory undergoes a phase transition with divergent specific heat c(V) similar to vertical bar 1 - T-c/T vertical bar(-1/2). Although the bulk viscosity remains finite all the way to the critical temperature, we find that tau(eff) diverges near the critical point as tau(eff) similar to vertical bar 1 - T-c/T vertical bar(-1/2). (C) 2009 Elsevier B.V. All rights reserved.
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