We study the constraints coming from the local causality requirement in various 2+1 dimensional dynamical theories of gravity. In topologically massive gravity, with a single parity noninvariant massive degree of freedom, and in new massive gravity, with two massive spin-2 degrees of freedom, causality and unitarity are compatible with each other and both require the Newton's constant to be negative. In their extensions, such as the Born-Infeld gravity and the minimal massive gravity the situation is similar and quite different from their higher dimensional counterparts, such as quadratic (e.g., Einstein-Gauss-Bonnet) or cubic theories, where causality and unitarity are in conflict. We study the problem both in asymptotically flat and asymptotically anti-de Sitter spaces.

Edelstein, J., Giribet, G., Gomez, C., Kilicarslan, E., Leoni, M., Tekin, B. (2017). Causality in 3D massive gravity theories. PHYSICAL REVIEW D, 95(10) [10.1103/PhysRevD.95.104016].

Causality in 3D massive gravity theories

GOMEZ, CAROLINA VALERIA;Leoni, Matías;
2017

Abstract

We study the constraints coming from the local causality requirement in various 2+1 dimensional dynamical theories of gravity. In topologically massive gravity, with a single parity noninvariant massive degree of freedom, and in new massive gravity, with two massive spin-2 degrees of freedom, causality and unitarity are compatible with each other and both require the Newton's constant to be negative. In their extensions, such as the Born-Infeld gravity and the minimal massive gravity the situation is similar and quite different from their higher dimensional counterparts, such as quadratic (e.g., Einstein-Gauss-Bonnet) or cubic theories, where causality and unitarity are in conflict. We study the problem both in asymptotically flat and asymptotically anti-de Sitter spaces.
Articolo in rivista - Articolo scientifico
Physics and Astronomy (miscellaneous)
English
2017
95
10
104016
none
Edelstein, J., Giribet, G., Gomez, C., Kilicarslan, E., Leoni, M., Tekin, B. (2017). Causality in 3D massive gravity theories. PHYSICAL REVIEW D, 95(10) [10.1103/PhysRevD.95.104016].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/215960
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