On black hole supertranslations and hydrodynamic enstrophy
classification
✦ hep-th
gr-qc
keywords
blackapproximateapproximatelybranesconservedenstrophyhydrodynamicsupertranslations
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We study the relation between approximate horizon symmetries of AdS black branes and approximately conserved currents in their dual hydrodynamic description. We argue that the existence of an approximately conserved enstrophy current unique to $2+1$ dimensional fluid flow implies that AdS${}_4$ black branes possess a special class of approximate supertranslations (which we identify).
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Cited by 1 Pith paper
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Dissipative hydrodynamic actions and horizon symmetries in gravity
A new prescription computes the dissipative action for holographic hydrodynamics in AdS4 to first order in derivatives and reproduces known Green's functions via horizon diffeomorphisms.
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