Fate of spin polarization in a relativistic fluid: An entropy-current analysis

DOI DOI 機関リポジトリ (HANDLE) HANDLE Web Site ほか1件をすべて表示 一部だけ表示 被引用文献9件 参考文献24件 オープンアクセス
  • 服部, 恒一
    Physics Department and Center for Field Theory and Particle Physics, Fudan University･Yukawa Institute for Theoretical Physics, Kyoto University
  • Hongo, Masaru
    RIKEN iTHEMS･Research and Education Center for Natural Sciences, Keio University
  • Huang, Xu-Guang
    Physics Department and Center for Field Theory and Particle Physics, Fudan University･Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University
  • Matsuo, Mamoru
    Kavli Institute of Theoretical Sciences, University of Chinese Academy of Sciences･RIKEN Center for Emergent Matter Science (CEMS)･Advanced Science Research Center, Japan Atomic Energy Agency
  • Taya, Hidetoshi
    Physics Department and Center for Field Theory and Particle Physics, Fudan University
  • 服部, 恒一
  • 10730252

書誌事項

公開日
2019-08-10
資源種別
journal article
権利情報
  • ©2019 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP³.
DOI
  • 10.1016/j.physletb.2019.05.040
  • 10.48550/arxiv.1901.06615
公開者
Elsevier BV

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説明

We derive relativistic hydrodynamic equations with a dynamical spin degree of freedom on the basis of an entropy-current analysis. The first and second laws of local thermodynamics constrain possible structures of the constitutive relations including a spin current and the antisymmetric part of the (canonical) energy-momentum tensor. Solving the obtained hydrodynamic equations within the linear-mode analysis, we find spin-diffusion modes, indicating that spin density is damped out after a characteristic time scale controlled by transport coefficients introduced in the antisymmetric part of the energy-momentum tensor in the entropy-current analysis. This is a consequence of mutual convertibility between spin and orbital angular momentum.

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