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Anisotropic hydrodynamics with boost-non-invariant expansion

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arxiv 2409.19897 v1 pith:ARIUXC5U submitted 2024-09-30 nucl-th hep-ph

Shile Chen , Shuzhe Shi This is my paper · ORCID
classification nucl-thhep-ph
keywords timeahydroanisotropicattractorboost-non-invariantdelayhydrodynamicsrapidity
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We establish the anisotropic hydrodynamics (aHydro) equations based on a boost-non-invariant longitudinally expanding system. Good consistency is found in the comparison between the aHydro results with those from the Boltzmann equation under relaxation time approximation. We also obtain corresponding attractor solution and observe the time delay of convergence when increasing the absolute value of the rapidity. We finally show that the rapidity dependence is solved by introducing the redefined attractor variables to compensate the time delay effect.

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  1. Attractor of hydrodynamic attractors

    nucl-th 2025-09 conditional novelty 6.0 of 10

    Second- and higher-order hydrodynamic attractors converge to the same universal curve before the Navier-Stokes limit, with the leading correction controlled only by second-order coefficients.

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