Relativistic hydrodynamics from quantum field theory on the basis of the generalized Gibbs ensemble method

Mar 16, 2015
14 pages
Published in:
  • Phys.Rev.D 92 (2015) 6, 065008
  • Published: Sep 10, 2015
e-Print:
Report number:
  • RIKEN-QHP-180,
  • RIKEN-MP-111

Citations per year

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Abstract: (APS)
We derive relativistic hydrodynamics from quantum field theories by assuming that the density operator is given by a local Gibbs distribution at initial time. We decompose the energy-momentum tensor and particle current into nondissipative and dissipative parts, and analyze their time evolution in detail. Performing the path-integral formulation of the local Gibbs distribution, we microscopically derive the generating functional for the nondissipative hydrodynamics. We also construct a basis to study dissipative corrections. In particular, we derive the first-order dissipative hydrodynamic equations without a choice of frame such as the Landau-Lifshitz or Eckart frame.
Note:
  • 29 pages, 3 figures (2 figures are added), published version
  • 47.75.+f
  • 47.10.-g
  • hydrodynamics: relativistic
  • tensor: energy-momentum
  • density: operator
  • dissipation
  • field theory
  • path integral
  • Landau-Lifshitz model