A note on positive energy of topologically massive gravity

Details A note on positive energy of topologically massive gravity A note on positive energy of topologically massive gravity

2009-07-23

arxiv.org/abs/0907.4135v1

Class.Quant.Grav.26:192001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages

Scientific paper

10.1088/0264-9381/26/19/192001

I review how "classical SUGRA" embeddability establishes positive energy E
for D=3 topologically massive gravity (TMG), with or without a cosmological
term, a procedure familiar from D=4 Einstein gravity (GR). It also provides
explicit expressions for E. In contrast to GR, E is not manifestly positive,
due to the peculiar two-term nature of TMG.

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