A panoply of Schwinger-Keldysh transport
| Autor: | Amos Yarom, Raja Marjieh, Natalia Pinzani-Fokeeva, Kristan Jensen |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
High Energy Physics - Theory Science & Technology Unitarity Statistical Mechanics (cond-mat.stat-mech) 010308 nuclear & particles physics Physics Multidisciplinary FOS: Physical sciences Transport theory 16. Peace & justice 01 natural sciences lcsh:QC1-999 Term (time) RECIPROCAL RELATIONS High Energy Physics - Theory (hep-th) 0103 physical sciences Physical Sciences Limit (mathematics) 010306 general physics Effective action Condensed Matter - Statistical Mechanics lcsh:Physics Mathematical physics IRREVERSIBLE-PROCESSES |
| Zdroj: | SciPost Physics, Vol 5, Iss 5, p 053 (2018) |
| DOI: | 10.48550/arxiv.1804.04654 |
| Popis: | We classify all possible allowed constitutive relations of relativistic fluids in a statistical mechanical limit using the Schwinger-Keldysh effective action for hydrodynamics. We find that microscopic unitarity enforces genuinely new constraints on the allowed transport coefficients that are invisible in the classical hydrodynamic description; they are not implied by the second law or the Onsager relations. We term these conditions Schwinger-Keldysh positivity and provide explicit examples of the various allowed terms. Comment: 96 pages; v2. Corrected an error regarding CPT transformation properties of dissipative transport and added references; v3. Minor fixes |
| Databáze: | OpenAIRE |
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