Low-lying gravitational modes in the scalar sector of the global AdS 4 black hole

Georgios Michalogiorgakis, Silviu S. Pufu

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38 Scopus citations


We compute the quasinormal frequencies corresponding to the scalar sector of gravitational perturbations in the four-dimensional AdS-Schwarzschild black hole by using the master field formalism of [1]. We argue that the non-deformation of the boundary metric favors a Robin boundary condition on the master field over the usual Dirichlet boundary condition mostly used in the literature. Using this Robin boundary condition we find a family of low-lying modes, whose frequencies match closely with predictions from linearized hydrodynamics on the boundary. In addition to the low-lying modes, we also see the usual sequence of modes with frequencies almost following an arithmetic progression.

Original languageEnglish (US)
Article number023
JournalJournal of High Energy Physics
Issue number2
StatePublished - Feb 1 2007

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


  • AdS-CFT correspondence
  • Black holes


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