Symmetry Breaking, Central Charges and the AdS_2/CFT_1 Correspondence

Abstract

When two-dimensional Anti-de Sitter space (AdS_2) is endowed with a non-constant dilaton the origin of the central charge in the Virasoro algebra generating the asymptotic symmetries of AdS_2 can be traced back to the breaking of the SL(2,R) isometry group of AdS_2. We use this fact to clarify some controversial results appeared in the literature about the value of the central charge in these models.

version 3, some points have been clarified

References in corpus (2)

• AdS${}_2$/CFT${}_1$ correspondence and near-extremal black hole entropy
• w_{\infty} Algebras, Conformal Mechanics, and Black Holes

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