Non-boost invariant fluid dynamicsShow others and affiliations
2020 (English)In: SciPost Physics, E-ISSN 2542-4653, Vol. 9, no 2, article id 018Article in journal (Refereed) Published
Abstract [en]
We consider uncharged fluids without any boost symmetry on an arbitrary curved background and classify all allowed transport coefficients up to first order in derivatives. We assume rotational symmetry and we use the entropy current formalism. The curved background geometry in the absence of boost symmetry is called absolute or Aristotelian spacetime. We present a closed-form expression for the energy-momentum tensor in Landau frame which splits into three parts: a dissipative (10), a hydrostatic non-dissipative (2) and a non-hydrostatic non-dissipative part (4), where in parenthesis we have indicated the number of allowed transport coefficients. The non-hydrostatic non-dissipative transport coefficients can be thought of as the generalization of coefficients that would vanish if we were to restrict to linearized perturbations and impose the Onsager relations. For the two hydrostatic and the four non-hydrostatic non-dissipative transport coefficients we present a Lagrangian description. Finally when we impose scale invariance, thus restricting to Lifshitz fluids, we find 7 dissipative, 1 hydrostatic and 2 non-hydrostatic non-dissipative transport coefficients.
Place, publisher, year, edition, pages
Stichting SciPost , 2020. Vol. 9, no 2, article id 018
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-284288DOI: 10.21468/SciPostPhys.9.2.018ISI: 000573102600003Scopus ID: 2-s2.0-85091648485OAI: oai:DiVA.org:kth-284288DiVA, id: diva2:1479137
Note
QC 20201026
2020-10-262020-10-262022-06-25Bibliographically approved