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arXiv · 1206.2421

Intrinsic ambiguity in second order viscosity parameters in relativistic hydrodynamics

Yu Nakayama
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Abstract

We show that relativistic hydrodynamics in Minkowski space-time has intrinsic ambiguity in second order viscosity parameters in the Landau-Lifshitz frame. This stems from the possibility of improvements of energy-momentum tensor. There exist at least two viscosity parameters which can be removed by using this ambiguity in scale invariant hydrodynamics in (1+3) dimension, and seemingly non-conformal hydrodynamic theories can be hiddenly conformal invariant.

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Yu Nakayama. 2012-06-12. Intrinsic ambiguity in second order viscosity parameters in relativistic hydrodynamics. https://doi.org/10.1142/s0217751x12501254

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