Repulsive Casimir force in stationary axisymmetric spacetimes
- URL: http://arxiv.org/abs/2106.00698v2
- Date: Wed, 9 Feb 2022 19:12:03 GMT
- Title: Repulsive Casimir force in stationary axisymmetric spacetimes
- Authors: V.D. Coronell, A.E. Gon\c{c}alves, M.C. Baldiotti and R. C. Batista
- Abstract summary: We study the influence of stationary axisymmetric spacetimes on Casimir energy.
We show that, for an apparatus orientation not considered before in the literature, the Casimir energy can change its sign, producing a repulsive force.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We study the influence of stationary axisymmetric spacetimes on Casimir
energy. We consider a massive scalar field and analyze its dependence on the
apparatus orientation with respect to the dragging direction associated with
such spaces. We show that, for an apparatus orientation not considered before
in the literature, the Casimir energy can change its sign, producing a
repulsive force. As applications, we analyze two specific metrics: one
associated with a linear motion of a cylinder and a circular equatorial motion
around a gravitational source described by Kerr geometry.
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