Quasibound states of Schwarzschild acoustic black holes

HS Vieira, KD Kokkotas - Physical Review D, 2021 - APS
In this paper, we study the recently proposed Schwarzschild acoustic black hole spacetime,
in which we investigate some physical phenomena related to the effective geometry of this …

Yang-Mills Casimir wormholes in D= 2+ 1

ACL Santos, CR Muniz, RV Maluf - Journal of Cosmology and …, 2023 - iopscience.iop.org
This work presents new three-dimensional traversable wormhole solutions sourced by the
Casimir density and pressures related to the quantum vacuum fluctuations in Yang-Mills …

Quasibound states, stability and wave functions of the test fields in the consistent 4D Einstein–Gauss–Bonnet gravity

HS Vieira - Universe, 2023 - mdpi.com
We examine the interaction between quantum test particles and the gravitational field
generated by a black hole solution that was recently obtained in the consistent 4 …

Instability of the charged massive scalar field on the Kerr–Newman black hole spacetime

HS Vieira, VB Bezerra, CR Muniz - The European Physical Journal C, 2022 - Springer
We investigate the quasibound states of charged massive scalar fields in the Kerr–Newman
black hole spacetime by using a new approach recently developed, which uses the …

The Horava–Lifshitz modifications of the Casimir effect at finite temperature revisited

H Cheng - The European Physical Journal C, 2022 - Springer
We investigate the Casimir force for parallel plates at finite temperature in the Horava–
Lifshitz (HL) theory. We find that the HL exponent cannot be chosen as an integer, or the …

A geometric optics method for calculating light propagation in gravitational fields

G Feng, J Huang - Optik, 2019 - Elsevier
If one examines the general form of solutions to Einstein field equations, it can be seen that
the space–time structure of light in a gravitational field and the definition of light speed in a …

The Casimir effect for the scalar and Elko fields in a Lifshitz-like field theory

RV Maluf, DM Dantas, CAS Almeida - The European Physical Journal C, 2020 - Springer
In this work, we obtain the Casimir energy for the real scalar field and the Elko neutral spinor
field in a field theory at a Lifshitz fixed point (LP). We analyze the massless and the massive …

Thermal Casimir effect for a Dirac field on flat space with a nontrivial circular boundary condition

J Venâncio, L Filho, H Mota, A Mohammadi - Physical Review D, 2024 - APS
This work investigates the thermal Casimir effect associated with a massive spinor field
defined on a four-dimensional flat space with a circularly compactified spatial dimension …

A space-time ruler-based explanation of relativistic effects

G Feng, J Huang - Optik, 2020 - Elsevier
The concepts of a time ruler and space ruler are put forward, where the zoom of the space-
time ruler provides for an intuitive explanation of the time dilation and length contraction …

Casimir effect in a Lorentz-violating tensor extension of a scalar field theory

MC Araújo, J Furtado, RV Maluf - The European Physical Journal Plus, 2024 - Springer
This paper investigates the Casimir energy modifications due to the Lorentz-violating CPT-
even contribution in an extension of the scalar QED. We have considered the complex …