Instabilities of kerr-AdS5 × S5 spacetime

Keiju Murata

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We study gravitational perturbations of the Kerr-AdS5 × S5 spacetime with equal angular momenta. In this spacetime, we found the two types of classical instability, superradiant and Gregory-Laflamme. The superradiant instability is caused by the wave amplification via superradiance and by wave reflection due to the potential barrier of the AdS spacetime. The Gregory-Laflamme instability appears in Kaluza-Klein modes of the internal space S and breaks the symmetry SO(6). By taking into account these instabilities, the phase structure of Kerr-AdS5 x S5 spacetime is revealed. The implication for the AdS/CFT correspondence is also discussed.

Original languageEnglish
Pages (from-to)1099-1124
Number of pages26
JournalProgress of Theoretical Physics
Volume121
Issue number5
DOIs
Publication statusPublished - 2009 May
Externally publishedYes

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wave amplification
wave reflection
angular momentum
perturbation
symmetry

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Instabilities of kerr-AdS5 × S5 spacetime. / Murata, Keiju.

In: Progress of Theoretical Physics, Vol. 121, No. 5, 05.2009, p. 1099-1124.

Research output: Contribution to journalArticle

Murata, Keiju. / Instabilities of kerr-AdS5 × S5 spacetime. In: Progress of Theoretical Physics. 2009 ; Vol. 121, No. 5. pp. 1099-1124.
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