Arbitrarily coupled massive scalar field in conical thin-shell spacetimes

Tomasini, C.; Celis, Emilio Rubín de; Simeone, Claudio

doi:10.1140/epjc/s10052-019-6722-7

Cited by 5 publications

(3 citation statements)

References 41 publications

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“…As a final note, we should stress that the traversability analysis of the present work can also be carried out for topologically trivial configurations with shells separating inner from outer regions (see for instance [12][13][14][15]), as well as for multi-layer distributions in cylindrical spacetimes (see for example Refs. [16][17][18]).…”

Section: Discussionmentioning

confidence: 99%

About the traversability of thin-shell wormholes

Celis

Simeone

2021

Eur. Phys. J. C

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Traversability in relation with tides across thin-shell wormholes is analyzed. Conditions for a safe travel through a wormhole throat are established in terms of the parameters characterizing the geometries and reasonable assumptions regarding the travellers motion. Most convenient geometries turn to include the physically interesting example of wormholes connecting locally flat submanifolds as those associated to gauge cosmic strings. A certain relaxation of the conditions imposed and the corresponding extension of the set of admissible configurations is also briefly discussed.

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Section: Discussionmentioning

confidence: 99%

About the traversability of thin-shell wormholes

Celis

Simeone

2021

Eur. Phys. J. C

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“…The space-time of infinitely thin cosmic string surrounded by a cylindrical shell was considered in the Refs. [217,218]. The metric of the space-time both inside and outside the shell has the form (77) but with different parameters ν in and ν out and with relation ν in r in = ν out r out on the shell.…”

Section: Self-force and Self-energymentioning

confidence: 99%

Self-action in Gravity

Khusnutdinov

2020

Preprint

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On a particle moving with variable acceleration in the flat space-time affects the self-force due to outgoing radiation. The gravitational fields bring an additional contribution to self-force due to scattering waves on the curved backgrounds. This force is not zero even for a particle at rest. A review of the self-interaction in the gravitational field is presented. We consider the self-force for the particle connected with the vector and scalar fields. Different backgrounds are considered -black holes, stars, topological defects, and wormholes.

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“…We have then addressed the determination of the self-force in cylindrical thin-shell spacetimes [14,15] and also in spherically symmetric ones [16] or different number of spacetime dimensions [17]. Our program has also been extended to the case of scalar massless and massive fields [18,19].…”

Section: Introductionmentioning

confidence: 99%

Electrostatics and self-force in asymptotically flat cylindrical wormholes

Celis

Simeone

2020

Eur. Phys. J. C

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The problem of the electrostatics in conical wormholes is revisited, now improving the background geometries with asymptotical flatness. The electric self-force on a point charge placed at different regions in the spacetime of a conical thin-shell wormhole connecting flat outer submanifolds is obtained and compared with the results of previous works. The study is also carried out in terms of a previously introduced analogy in which the effect of the matter shells on the electric field is reproduced by non-gravitating layers of charge located on the boundary surfaces. Besides, a better insight on the physical effects of a non trivial geometry is obtained by means of a further analysis of the electric fluxes across the wormhole throat and at both spatial infinities. It is found that the throat is traversed by a non-arbitrary and finite electric flux determined by the global topology, which is proportional to the charge of the source, and is characteristic of the asymptotically flat cylindrical wormholes regardless of the details of the throat geometry.

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Arbitrarily coupled massive scalar field in conical thin-shell spacetimes

Cited by 5 publications

References 41 publications

About the traversability of thin-shell wormholes

About the traversability of thin-shell wormholes

Self-action in Gravity

Electrostatics and self-force in asymptotically flat cylindrical wormholes

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