Enhanced asymptotic symmetry algebra of AdS3

Abstract

A generalization of the Brown-Henneaux boundary conditions is introduced for pure gravity with negative cosmological constant in 3 dimensions. This leads to new degrees of freedom and to an enhancement of the symmetry algebra. Up to the zero modes, it consists of two copies of the semi-direct product of a Virasoro algebra with a U(1) current algebra. The associated surface charge algebra now contains three non-zero central charges: the two usual Brown-Henneaux central charges and one new quantity.

19 pages

References in corpus (9)

• Setting the boundary free in AdS/CFT
• Surface charge algebra in gauge theories and thermodynamic integrability
• Warped Conformal Field Theory
• New Boundary Conditions for AdS3
• Boundary conditions for spacelike and timelike warped AdS_3 spaces in topologically massive gravity
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