remarks on the taub-nut solution in chern–simons modified gravity

remarks on the taub-nut solution in chern–simons modified gravity

;Yves Brihaye;Eugen Radu
ACS chemical biology 2017 Vol. 764 pp. 300-305
93
brihaye2017physicsremarks

Abstract

We discuss the generalization of the NUT spacetime in General Relativity (GR) within the framework of the (dynamical) Einstein–Chern–Simons (ECS) theory with a massless scalar field. These configurations approach asymptotically the NUT spacetime and are characterized by the ‘electric’ and ‘magnetic’ mass parameters and a scalar ‘charge’. The solutions are found both analytically and numerically. The analytical approach is perturbative around the Einstein gravity background. Our results indicate that the ECS configurations share all basic properties of the NUT spacetime in GR. However, when considering the solutions inside the event horizon, we find that in contrast to the GR case, the spacetime curvature grows (apparently) without bound.

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214335
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10.1016/j.physletb.2016.11.055
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