Hydrodynamics of spin currents

Angel Domingo Gallegos; Umut Gürsoy; Amos Yarom

doi:10.21468/SCIPOSTPHYS.11.2.041

Hydrodynamics of spin currents

Angel Domingo Gallegos, Umut Gürsoy, Amos Yarom

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

We study relativistic hydrodynamics in the presence of a non vanishing spin 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 certain dynamical spin limit and in a perturbative setup and find surprisingly good agreement with measurements of global Λ-hyperon polarization carried out at RHIC.

Original language	English
Article number	041
Journal	SciPost Physics
Volume	11
Issue number	2
DOIs	https://doi.org/10.21468/SCIPOSTPHYS.11.2.041
Publication status	Published - Aug 2021

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title = "Hydrodynamics of spin currents",

abstract = "We study relativistic hydrodynamics in the presence of a non vanishing spin 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 certain dynamical spin limit and in a perturbative setup and find surprisingly good agreement with measurements of global Λ-hyperon polarization carried out at RHIC.",

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AB - We study relativistic hydrodynamics in the presence of a non vanishing spin 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 certain dynamical spin limit and in a perturbative setup and find surprisingly good agreement with measurements of global Λ-hyperon polarization carried out at RHIC.

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Hydrodynamics of spin currents

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