Universal behaviors of speed of sound from holography

Yi Yang, Pei Hung Yuan

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We investigate the speed of sound in (d+1)-dimensional quantum field theory by studying its dual (d+2)-dimensional gravity theory from gauge/gravity correspondence. Instead of the well-known conformal limit cs2→1/d at high temperature, we reveal two more universal quantities in various limits: cs2→(d-1)/16π at low temperature and cs2→(d-1)/16πd at large chemical potential.

Original languageEnglish
Article number126009
JournalPhysical Review D
Volume97
Issue number12
DOIs
StatePublished - 15 Jun 2018

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