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Communications in Mathematical Physics

, Volume 104, Issue 2, pp 207–226 | Cite as

Central charges in the canonical realization of asymptotic symmetries: An example from three dimensional gravity

  • J. D. Brown
  • Marc Henneaux
Article

Abstract

It is shown that the global charges of a gauge theory may yield a nontrivial central extension of the asymptotic symmetry algebra already at the classical level. This is done by studying three dimensional gravity with a negative cosmological constant. The asymptotic symmetry group in that case is eitherR×SO(2) or the pseudo-conformal group in two dimensions, depending on the boundary conditions adopted at spatial infinity. In the latter situation, a nontrivial central charge appears in the algebra of the canonical generators, which turns out to be just the Virasoro central charge.

Keywords

Gauge Theory Central Charge Cosmological Constant Classical Level Central Extension 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • J. D. Brown
    • 1
  • Marc Henneaux
    • 1
  1. 1.Center for Theoretical PhysicsThe University of Texas at AustinAustinUSA

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