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Casimir effect in a Schwarzschild-like wormhole spacetime

Universidade Estadual do Ceará, Faculdade de Educação, Ciências e Letras de Iguatu, Av. Dario Rabelo, s/n, CEP: 63.500-000, Iguatu, CE, Brazil

E-mail Address: alana.santos@aluno.uece.br

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C. R. Muniz

https://orcid.org/0000-0002-1266-2218

Universidade Estadual do Ceará, Faculdade de Educação, Ciências e Letras de Iguatu, Av. Dario Rabelo, s/n, CEP: 63.500-000, Iguatu, CE, Brazil

E-mail Address: celio.muniz@uece.br

Corresponding author.

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, and

L. T. Oliveira

Universidade Estadual do Ceará, Faculdade de Educação, Ciências e Letras de Iguatu, Av. Dario Rabelo, s/n, CEP: 63.500-000, Iguatu, CE, Brazil

E-mail Address: leonardo.tavares@uece.br

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https://doi.org/10.1142/S0218271821500322Cited by:18 (Source: Crossref)

Abstract

In this paper, we investigate the role of gravito-inertial effects on the Casimir energy of a massless scalar field confined between two parallel plates orbiting a static and zero tidal Schwarzschild-like wormhole, at zero temperature. Firstly, we obtain the metric in isotropic coordinates, finding the allowed angular velocities and the circular orbit radii for a material particle as well as for the photon. Following this, we compute the changes induced by both gravity and rotation of the plates in the energy density of the quantum vacuum fluctuations associated to the scalar field, in the zero tidal approximation inside the cavity. Finally, the Casimir energy obtained for some these wormholes are graphically compared between themselves and also with those ones related to an Ellis wormhole as well as to a Schwarzschild black hole. With this, the gravito-inertial effects on the quantum vacuum fluctuations analyzed in this work allow to recognize and identify both the geometry and topology of the spacetime associated to each one of these objects.

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