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Semiclassical Effects Induced by Aharonov-Bohm Interaction Between a Cosmic String and a Scalar Field

M. E. X. Guimaraes
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Abstract

In the context of the vacuum polarization effect, we consider the backreaction of the energy-momentum tensor of a charged scalar field on the background metric of a cosmic string carrying a magnetic flux $Φ$. Working within the semiclassical approach to the Einstein eqs. we find the first-order (in $\hbar$) metric associated to the magnetic flux cosmic string. We show that the contribution to the vacuum polarization effect coming from the Aharonov-Bohm interaction is larger than the one coming from the non-trivial gravitational interaction.

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M. E. X. Guimaraes. 1997-02-14. Semiclassical Effects Induced by Aharonov-Bohm Interaction Between a Cosmic String and a Scalar Field. https://doi.org/10.1016/s0370-2693(97)00240-2

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