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arXiv · 2101.04759

Hydrodynamics of spin currents

Domingo Gallegos·Umut Gursoy·Amos Yarom
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Abstract

We study relativistic hydrodynamics in the presence of a non vanishing spin chemical potential. Using a variety of techniques we carry out an exhaustive analysis, and identify the constitutive relations for the stress tensor and spin current in such a setup, allowing us to write the hydrodynamic equations of motion to second order in derivatives. We then solve the equations of motion in a perturbative setup and find surprisingly good agreement with measurements of global $\Lambda$-hyperon polarization carried out at RHIC.

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Domingo Gallegos, Umut Gursoy, Amos Yarom. 2021-01-12. Hydrodynamics of spin currents. https://doi.org/10.21468/scipostphys.11.2.041

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