Self-force on a scalar particle in a class of wormhole spacetimes

Abstract

We consider the self-energy and the self-force for scalar massive and massless particles at rest in the wormhole space-time. We develop a general approach to obtain the self-force and apply it to the two specific profiles of the wormhole throat, namely, with singular and with smooth curvature. We found that the self-force changes its sign at the point where nonminimal coupling $\xi =1/8$ (for massless case) and it tends to infinity for specific values of $\xi$. It may be attractive as well repulsive depending on the profile of the throat. For massless particle and minimal coupling case the electromagnetic results are recovered.

15 pages, 2 figures

References in corpus (4)

• Astrophysics of Wormholes
• Self-force of a point charge in the space-time of a symmetric wormhole
• Electrostatic interaction of a pointlike charge with a wormhole
• Electrostatics in a wormhole geometry

Cited by in corpus (4)

• Self-Force Calculations with Matched Expansions and Quasinormal Mode Sums
• Induced self-energy on a static scalar charged particle in the spacetime of a global monopole with finite core
• Vacuum polarization of a massive scalar field in a wormhole spacetime
• Arbitrarily coupled massive scalar field in conical thin-shell spacetimes