Classical and quantum temperature fluctuations via holography

Alexander Balatsky, Sven Bjarke Gudnason*, Yaron Kedem, Alexander Krikun, Lárus Thorlacius, Konstantin Zarembo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We study local temperature fluctuations in a 2+1 dimensional CFT on the sphere, dual to a black hole in asymptotically AdS spacetime. The fluctuation spectrum is governed by the lowest-lying hydrodynamic modes of the system whose frequency and damping rate determine whether temperature fluctuations are thermal or quantum. We calculate numerically the corresponding quasinormal frequencies and match the result with the hydrodynamics of the dual CFT at high temperature. As a by-product of our analysis we determine the appropriate boundary conditions for calculating low-lying quasinormal modes for a four-dimensional Reissner-Nordström black hole in global AdS.

Original languageEnglish
Article number11
JournalJournal of High Energy Physics
Issue number1
Publication statusPublished - Jan 2015

Bibliographical note

Publisher Copyright:
© 2015, The Author(s).

Other keywords

  • AdS-CFT Correspondence
  • Black Holes
  • Holography and condensed matter physics (AdS/CMT)


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