Correlation functions of the energy-momentum tensor in SU(2) gauge theory at finite temperature
Aug, 200824 pages
Published in:
- Phys.Rev.D 78 (2008) 094501
e-Print:
- 0808.1127 [hep-lat]
Report number:
- BNL-NT-08-9,
- BI-TP-2008-08
View in:
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Abstract: (arXiv)
We calculate correlation functions of the energy-momentum tensor in the vicinity of the deconfinement phase transition of (3+1)-dimensional SU(2) gauge theory and discuss their critical behavior in the vicinity of the second order deconfinement transition. We show that correlation functions of the trace of the energy momentum tensor diverge uniformly at the critical point in proportion to the specific heat singularity. Correlation functions of the pressure, on the other hand, stay finite at the critical point. We discuss the consequences of these findings for the analysis of transport coefficients, in particular the bulk viscosity, in the vicinity of a second order phase transition point.- 12.38.Gc
- 11.15.Ha
- 11.10.Wx
- 12.38.Mh
- tensor: energy-momentum
- gauge field theory: SU(2)
- critical phenomena
- correlation function
- deconfinement
- viscosity
References(35)
Figures(10)