Relaxation time of non-conformal plasma
نویسنده
چکیده
We study effective relaxation time of viscous hydrodynamics of strongly coupled nonconformal 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 τeff of N = 2 plasma. For a certain choice of masses this theory undergoes a phase transition with divergent specific heat cV ∼ |1 − Tc/T |−1/2. Although the bulk viscosity remains finite all the way to the critical temperature, we find that τeff diverges near the critical point as τeff ∼ |1− Tc/T |−1/2.
منابع مشابه
Relaxation time of a CFT plasma at finite coupling
Following recent formulation of second order relativistic viscous hydrodynamics for conformal fluids, we compute finite coupling corrections to the relaxation time of N = 4 supersymmetric Yang-Mills plasma. The result is expected to be universal for any strongly coupled conformal gauge theory plasma in four dimensions.
متن کاملOn the supergravity description of boost invariant conformal plasma at strong coupling
We study string theory duals of the expanding boost invariant conformal gauge theory plasmas at strong coupling. The dual supergravity background is constructed as an asymptotic late-time expansion, corresponding to equilibration of the gauge theory plasma. The absence of curvature singularities in the first few orders of the late-time expansion of the dual gravitational background unambiguousl...
متن کاملar X iv : 0 80 3 . 34 21 v 1 [ he p - th ] 2 4 M ar 2 00 8 On SUGRA description of boost - invariant conformal plasma at strong coupling
We study string theory duals of the expanding boost invariant conformal gauge theory plasmas at strong coupling. The dual supergravity background is constructed as an asymptotic latetime expansion, corresponding to equilibration of the gauge theory plasma. The absence of curvature singularities in the first few orders of the late-time expansion of the dual gravitational background unambiguously...
متن کاملar X iv : 0 80 3 . 34 21 v 2 [ he p - th ] 2 6 M ar 2 00 8 On SUGRA description of boost - invariant conformal plasma at strong coupling
We study string theory duals of the expanding boost invariant conformal gauge theory plasmas at strong coupling. The dual supergravity background is constructed as an asymptotic latetime expansion, corresponding to equilibration of the gauge theory plasma. The absence of curvature singularities in the first few orders of the late-time expansion of the dual gravitational background unambiguously...
متن کاملMeshless analysis of casting process considering non-Fourier heat transfer
Casting is considered as a major manufacturing process. Thermal analysis of a solidifying medium is of great importance for appropriate design of casting processes. The conventional governing equation of a solidifying medium is based on the Fourier heat conduction law, which does not account for the phase-lag between the heat flux and the temperature gradient. In this paper, the concept of phas...
متن کامل