Work

Generalized relativistic second-order spin hydrodynamics from Zubarev’s nonequilibrium statistical operator

Year: 2025

Type: article

Abstract: Following the approach of Harutyunyan et al. [Generalized relativistic second-order dissipative hydrodynamics: Coupling different rank tensors, Ann. Phys. (Amsterdam) 481, 170159 (2025)], where additional second-order contributions from nonlocal corrections due to two-point correlation functions of tensors of different ranks at distinct spacetime points were first derived, we similarly employ the nonequilibrium statistical operator method to extend this framework to include spin degrees of freedom. In addition to obtaining analogous extra second-order terms in the shear stress tensor, bulk viscous pressure, and charge diffusion currents resulting from such contributions, we further derive additional second-order terms originating from the same mechanism in the charge diffusion currents, rotational stress tensor, and the boost heat vector. Furthermore, we express all transport coefficients represented by two-point or three-point correlations in terms of retarded Green's functions.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/kbgm-vq87

Authors: Duan She, Yi-Wei Qiu, Ze-Fang Jiang, Defu Hou

Institutions: Central China Normal University, Henan Academy of Sciences, Hubei Engineering 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: green

Funders: National Natural Science Foundation of China, Key Laboratory of Quark and Lepton Physics, National Key Research and Development Program of China

Awards: G2652705316, G3607595702, G3636669083, G3972519843, G7308329716