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Stationary rotating black holes in theories with gravitational Chern-Simons Lagrangian term

Show simple item record Bonora, Loriano Cvitan, Maro Prester, Predrag Dominis Pallua, Silvio Smolic, Ivica 2012-12-04T08:54:05Z 2012-12-04T08:54:05Z 2012-10-15
dc.description 34 pages en_US
dc.description.abstract We study the effects of introducing purely gravitational Chern-Simons Lagrangian terms in ordinary Einstein gravity on stationary rotating black hole solutions and on the associated thermodynamical properties, in a generic number of dimensions which support these terms (i.e. in D = 4k-1). We analyze the conditions, namely the number of vanishing angular momenta, under which the contributions of the Chern-Simons term to the equations of motion and the black hole entropy vanish. The particular case of a 7-dimensional theory in which a purely gravitational Chern-Simons term is added to the Einstein-Hilbert Lagrangian in D=7 dimensions is investigated in some detail. As we have not been able to find exact analytic solutions in nontrivial cases, we turn to perturbation theory and calculate the first-order perturbative correction to the Myers-Perry metric in the case where all angular momenta are equal. The expansion parameter is a dimensionless combination linear in the Chern-Simons coupling constant and the angular momentum. Corrections to horizon and ergosurface properties, as well as black hole entropy and temperature, are presented. en_US
dc.language.iso en en_US
dc.publisher SISSA en_US
dc.relation.ispartofseries arXiv:1210.4035;
dc.relation.ispartofseries SISSA;27/2012/EP
dc.title Stationary rotating black holes in theories with gravitational Chern-Simons Lagrangian term en_US
dc.type Preprint en_US
dc.miur.area -1 en_US
dc.contributor.area Physics en_US

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