SELF-INTERACTION FOR PARTICLES IN THE WORMHOLE SPACE-TIMES

The self-energy and self-force for particles with electric and scalar charges at rest in the space-time of massless and massive wormholes are considered. The particle with electric charge is always attracted to wormhole throat for arbitrary profile of the throat. The self-force for scalar particle shows different behavior depending on the non-minimal coupling. The self-force for massive scalar field is localized close to the throat of the wormhole.

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SELF-INTERACTION FOR PARTICLES IN THE WORMHOLE SPACE-TIMES

International Journal of Modern Physics A ◽

10.1142/s0217751x11054322 ◽

2011 ◽

Vol 26 (22) ◽

pp. 3868-3877

Author(s):

NAIL KHUSNUTDINOV

Keyword(s):

Scalar Field ◽

Electric Charge ◽

Scalar Particle ◽

The Self ◽

Massive Scalar ◽

Minimal Coupling ◽

Massive Scalar Field ◽

Arbitrary Profile ◽

Self Energy ◽

Self Force

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Self-force of a scalar charge in the space-time of extreme charged anti-dilatonic wormhole

International Journal of Geometric Methods in Modern Physics ◽

10.1142/s0219887818500500 ◽

2018 ◽

Vol 15 (03) ◽

pp. 1850050 ◽

Cited By ~ 3

Author(s):

A. A. Popov ◽

O. Aslan

Keyword(s):

Scalar Field ◽

Space Time ◽

The Self ◽

Massless Scalar ◽

Massless Scalar Field ◽

Minimal Coupling ◽

Scalar Charge ◽

Self Force

The self-interaction for a static scalar charge in the space-time of extreme charged anti-dilatonic wormhole is calculated. We assume that the scalar charge is the source of massless scalar field with minimal coupling of the scalar field to the curvature of spacetime.

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SELF-ENERGY AND SELF-FORCE ON A SCALAR PARTICLE IN A WORMHOLE SPACE–TIME

International Journal of Modern Physics D ◽

10.1142/s021827181001786x ◽

2010 ◽

Vol 19 (08n10) ◽

pp. 1365-1369 ◽

Cited By ~ 1

Author(s):

V. B. BEZERRA ◽

N. R. KHUSNUTDINOV

Keyword(s):

Scalar Particle ◽

Flat Space ◽

Space Time ◽

The Self ◽

Massless Particles ◽

Self Energy ◽

Self Force

We consider the self-energy and the self-force for scalar massless particles at rest in the short-throat flat-space–time wormhole background. In some limiting cases we found how the sign of the self-energy changes with the non-minimal constant ξ. We found that the self-force is always attractive for the profile of the throat considered.

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Quasinormal modes of a massive scalar field nonminimally coupled to gravity in the spacetime of self-dual black hole

The European Physical Journal C ◽

10.1140/epjc/s10052-021-09884-1 ◽

2021 ◽

Vol 81 (12) ◽

Author(s):

J. S. Santos ◽

M. B. Cruz ◽

F. A. Brito

Keyword(s):

Black Hole ◽

Scalar Field ◽

Loop Quantum Gravity ◽

Strong Dependence ◽

Quasinormal Modes ◽

The Self ◽

Massive Scalar ◽

Nonminimal Coupling ◽

Massive Scalar Field ◽

Quantum Black Hole

AbstractIn this work, we investigate the quasinormal modes for a massive scalar field with a nonminimal coupling with gravity in the spacetime of a loop quantum black hole, known as the self-dual black hole. In this way, we have calculated the characteristic frequencies using the 3rd order WKB approach, where we can verify a strong dependence with the mass of scalar field, the parameter of nonminimal coupling with gravity, and parameters of the loop quantum gravity. From our results, we can check that the self-dual black hole is stable under the scalar perturbations when assuming small values for the parameters. Also, such results tell us that the quasinormal modes assume different values for the cases where the mass of field is null and the nonminimal coupling assumes $$\xi =0$$ ξ = 0 and $$\xi =1/6$$ ξ = 1 / 6 , i.e., a possible breaking of the conformal invariance can be seen in the context of loop quantum black holes.

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