Work

Perfect spin hydrodynamics at all orders in spin polarization

Year: 2026

Type: article

Abstract: 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.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2026.140205

Author: Zbigniew Drogosz

Institution: Jagiellonian University

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Narodowe Centrum Nauki, Narodowym Centrum Nauki

Award: G6385391674