Cosmological topologically massive gravitons and photons

By Steven Carlip, S. Deser, A. Waldron, D. Wise. 2008

160 citations recorded by the source corpus.

We study topologically massive (2+1)-dimensional gravity with a negative cosmological constant. The masses of the linearized curvature excitations about AdS3 backgrounds are not only shifted from their flat background values but also, more surprisingly, split according to chirality. For all finite values of the topological mass, we find a single bulk degree of freedom with positive energy, and exhibit a complete set of normalizable, finite-energy wave packet solutions. This model can also be written as a sum of two higher-derivative Chern–Simons theories, weighted by the central charges of the boundary conformal field theory. At two particular ‘critical’ values of the couplings, one of these central charges vanishes, and linearized topologically massive gravity becomes equivalent to topologically massive electromagnetism; however, the physics of the bulk wave packets remains unaltered here.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/47b359d478d2f4395b788f04734d151466255c8c

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Citations in the corpus

Massive Gravity (2014, background): “Indeed, at the special point μl = 1, (where l is the AdS length scale, Λ = −1/l(2)), known as the ‘chiral point’ the left-moving (in the language of the boundary CFT) excitations of the theory become pure gauge and it has been argued that the theory then becomes purely an interacting theory for the ”
Instability in cosmological topologically massive gravity at the chiral point (2008, background): “Its negative energy renders CCTMG unstable, concurrent with [8].”
Umbral Moonshine (2012, methodology): “We refer to [28, 29, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85] for further discussions on the AdS/CFT correspondence and extremal CFT’s.”
Minimal massive 3D gravity (2014, background): “However, another bulk mode appears at the critical point [3], and it was soon realized that this is a chirality-violating “logarithmic” mode that is compatible with consistent AdS3 boundary conditions [4], implying a non-unitary “logarithmic” boundary CFT.”
Chiral gravity, log gravity, and extremal CFT (2009, methodology): “However, the analogous computation has already been solved in Poincaré coordinates [7].”
Warped AdS3 black holes (2008, background): “(1)For a recent discussion of the negative G case see [3, 4].”