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Fate of spin polarization in a relativistic fluid: An entropy-current analysis
- Source :
- Physics Letters B, Vol 795, Iss, Pp 100-106 (2019), Physics Letters
- Publication Year :
- 2019
- Publisher :
- Elsevier, 2019.
-
Abstract
- 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.<br />7 pages
- Subjects :
- High Energy Physics - Theory
Nuclear and High Energy Physics
Angular momentum
Nuclear Theory
FOS: Physical sciences
Relativistic fluid
Spin current
01 natural sciences
Nuclear Theory (nucl-th)
High Energy Physics - Phenomenology (hep-ph)
0103 physical sciences
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Spin density
010306 general physics
Entropy (arrow of time)
Condensed Matter - Statistical Mechanics
Physics
Spin polarization
Statistical Mechanics (cond-mat.stat-mech)
Condensed Matter - Mesoscale and Nanoscale Physics
010308 nuclear & particles physics
Antisymmetric relation
Current analysis
lcsh:QC1-999
High Energy Physics - Phenomenology
Classical mechanics
High Energy Physics - Theory (hep-th)
lcsh:Physics
Subjects
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 795
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi.dedup.....6ca04706445d62b47cf357364c321889