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Main Author: Drogosz, Zbigniew
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.06014
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author Drogosz, Zbigniew
author_facet Drogosz, Zbigniew
contents We compare two recently developed frameworks of perfect spin hydrodynamics for spin-$1/2$ particles, based respectively on classical kinetic theory and the Wigner function. We show that the conserved currents in both approaches have the same form at each order of the expansion in the components of the spin polarization tensor $ω$. The only difference is a relative multiplicative factor, which is equal to 1 at the lowest nontrivial order and increases monotonically with the expansion order.
format Preprint
id arxiv_https___arxiv_org_abs_2509_06014
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Perfect spin hydrodynamics at all orders in spin polarization
Drogosz, Zbigniew
High Energy Physics - Phenomenology
Nuclear Theory
We compare two recently developed frameworks of perfect spin hydrodynamics for spin-$1/2$ particles, based respectively on classical kinetic theory and the Wigner function. We show that the conserved currents in both approaches have the same form at each order of the expansion in the components of the spin polarization tensor $ω$. The only difference is a relative multiplicative factor, which is equal to 1 at the lowest nontrivial order and increases monotonically with the expansion order.
title Perfect spin hydrodynamics at all orders in spin polarization
topic High Energy Physics - Phenomenology
Nuclear Theory
url https://arxiv.org/abs/2509.06014