Nonequilibrium Thermodynamical Inequivalence of Quantum Stress-energy and Spin Tensors

Abstract

It is shown that different pairs of stress-energy and spin tensors of quantum relativistic fields related by a pseudo-gauge transformation, i.e. differing by a divergence, imply different mean values of physical quantities in thermodynamical nonequilibrium situations. Most notably, transport coefficients and the total entropy production rate are affected by the choice of the spin tensor of the relativistic quantum field theory under consideration. Therefore, at least in principle, it should be possible to disprove a fundamental stress-energy tensor and/or to show that a fundamental spin tensor exists by means of a dissipative thermodynamical experiment.

18 pages. Final version accepted for publication in Phys Rev D

References in corpus (7)

• Stability and Causality in relativistic dissipative hydrodynamics
• The applicability of causal dissipative hydrodynamics to relativistic heavy ion collisions
• Non-dissipative hydrodynamics: Effective actions versus entropy current
• Thermodynamical inequivalence of quantum stress-energy and spin tensors
• Hydrodynamics of anisotropic quark and gluon fluids
• Intrinsic ambiguity in second order viscosity parameters in relativistic hydrodynamics
• Hydrodynamics for relativistic heavy ion collisions

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