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ファイル | 記述 | サイズ | フォーマット | |
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j.physletb.2019.05.040.pdf | 306.13 kB | Adobe PDF | 見る/開く |
タイトル: | Fate of spin polarization in a relativistic fluid: An entropy-current analysis |
著者: | Hattori, Koichi https://orcid.org/0000-0002-5851-8537 (unconfirmed) Hongo, Masaru Huang, Xu-Guang Matsuo, Mamoru Taya, Hidetoshi |
著者名の別形: | 服部, 恒一 |
発行日: | 10-Aug-2019 |
出版者: | Elsevier BV |
誌名: | Physics Letters B |
巻: | 795 |
開始ページ: | 100 |
終了ページ: | 106 |
抄録: | 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. |
著作権等: | ©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. |
URI: | http://hdl.handle.net/2433/246189 |
DOI(出版社版): | 10.1016/j.physletb.2019.05.040 |
出現コレクション: | 学術雑誌掲載論文等 |
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