Vacuum Polarization in the Spacetime of a Scalar-Tensor Cosmic String

Details Vacuum Polarization in the Spacetime of a Scalar-Tensor Cosmic String Vacuum Polarization in the Spacetime of a Scalar-Tensor Cosmic String

2000-12-14

arxiv.org/abs/gr-qc/0012050v1

Mod.Phys.Lett. A16 (2001) 1565-1572

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, LATEX file, 2 eps figures

Scientific paper

10.1142/S0217732301004662

We study the vacuum polarization effect in the spacetime generated by a
magnetic flux cosmic string in the framework of a scalar-tensor gravity. The
vacuum expectation values of the energy-momentum tensor of a conformally
coupled scalar field are calculated. The dilaton's contribution to the vacuum
polarization effect is shown explicitly.

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