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.

arXiv comment15 pages, 2 figures

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• Self-force of a point charge in the space-time of a massive wormhole
• Self-energy of a scalar charge near higher-dimensional black holes
• Self-force on a scalar point charge in the long throat
• Induced self-energy on a static scalar charged particle in the spacetime of a global monopole with finite core
• Electrostatics in a simple wormhole revisited
• Electrostatic Potential of a Point Charge in a Brans-Dicke Reissner-Nordstrom Field
• Self-force on an arbitrarily coupled static scalar particle in a wormhole space-time
• Scalar self-force on static charge in a long throat
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• Self-action in Gravity
• Self-force of a scalar charge in the space-time of extreme charged anti-dilatonic wormhole
• Vacuum polarization of a massive scalar field in a wormhole spacetime
• Renormalization for self-potential of a scalar charge in static space-times
• Arbitrarily coupled massive scalar field in conical thin-shell spacetimes
• Bremstrahlung in wormhole spacetime with infinitely short throat
• Self-interaction for particles in the wormhole space-times