Quantization of massive scalar fields over static black string backgrounds

Details Quantization of massive scalar fields over static black string backgrounds Quantization of massive scalar fields over static black string backgrounds

2007-07-04

arxiv.org/abs/0707.0706v1

Phys.Rev.D75:107501,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages

Scientific paper

10.1103/PhysRevD.75.107501

The renormalized mean value of the corresponding components of the Energy-Momentum tensor for massive scalar fields coupled to an arbitrary gravitational field configuration having cylindrical symmetry are analytically evaluated using the Schwinger-DeWitt approximation, up to second order in the inverse mass value. The general results are employed to explicitly derive compact analytical expressions for the Energy-Momentum tensor in the particular background of the Black-String spacetime. In the case of the Black String considered in this work, we proof that a violation of the weak energy condition occur at the horizon of the space-time for values of the coupling constant, that include as particular cases the most interesting of minimal and conformal coupling.

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