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arXiv · 2212.02451

Metric anisotropies and nonequilibrium attractor for expanding plasma

Nisarg Vyas·Sunil Jaiswal·Amaresh Jaiswal
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Abstract

We consider the evolution of a system of chargeless and massless particles in an anisotropic space-time given by the Bianchi type I metric. Specializing to the axis-symmetric case, we derive the framework of anisotropic hydrodynamics from the Boltzmann equation in the relaxation-time approximation. We consider the case of the axis-symmetric Kasner metric and study the approach to the emergent attractor in near and far-off-equilibrium regimes. Further, by relaxing the Kasner conditions on metric coefficients, we study the effect of expansion geometries on the far-off-equilibrium attractor and discuss its implications in the context of relativistic heavy-ion collisions.

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Nisarg Vyas, Sunil Jaiswal, Amaresh Jaiswal. 2022-12-05. Metric anisotropies and nonequilibrium attractor for expanding plasma. https://doi.org/10.1016/j.physletb.2023.137943

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