Search Results - "Bessa, C. H. G"

LIV effects on the quantum stochastic motion in an acoustic FRW-geometry by Anacleto, M. A., Bessa, C. H. G., Brito, F. A., Mateus, A. E., Passos, E., Santos, J. R. L.

“…It is well known in the literature that vacuum fluctuations can induce a random motion of particles which is sometimes called quantum Brownian motion or…”
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Quantized fields and gravitational particle creation in f(R) expanding universes by Pereira, S.H., Bessa, C.H.G., Lima, J.A.S.

“…The problem of cosmological particle creation for a spatially flat, homogeneous and isotropic universes is discussed in the context of f(R) theories of…”
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Analog model for light propagation in semiclassical gravity by Bessa, C. H. G., De Lorenci, V. A., Ford, L. H.

“…We treat a model based upon nonlinear optics for the semiclassical gravitational effects of quantum fields upon light propagation. Our model uses a nonlinear…”
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Electromagnetic vacuum fluctuations and topologically induced motion of a charged particle by Bessa, C. H. G, Reboucas, M. J

“…Class. Quantum Grav. 37 125006 (2020) We show that a nontrivial topologies of the spatial section of Minkowski space-time allow for motion of a charged…”
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LIV effects on the quantum stochastic motion in an acoustic FRW-geometry by Anacleto, M. A, Bessa, C. H. G, Brito, F. A, Mateus, A. E, Passos, E, Santos, J. R. L

“…It is well known in the literature that vacuum fluctuations can induce a random motion of particles which is sometimes called quantum Brownian motion or…”
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Stochastic motion in an expanding noncommutative fluid by Anacleto, M. A, Bessa, C. H. G, Brito, F. A, Ferreira, E. J. B, Passos, E

“…Phys. Rev. D 103, 125023 (2021) A model for an expanding noncommutative acoustic fluid analogous to a Friedmann-Robertson-Walker geometry is derived. For this…”
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Improved constraints on violations of the Einstein equivalence principle in the electromagnetic sector with complementary cosmic probes by Holanda, R. F. L, Pereira, S. H, Busti, V. C, Bessa, C. H. G

“…Recent results have shown that a field non-minimally coupled to the electromagnetic Lagrangian can induce a violation of the Einstein equivalence principle. {…”
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Quantum Brownian motion in an analog Friedmann-Robertson-Walker geometry by Bessa, C. H. G, Bezerra, V. B, de Mello, E. R. Bezerra, Mota, H. F

“…Phys. Rev. D 95, 085020 (2017) In this paper we study the effects of quantum scalar field vacuum fluctuations on scalar test particles in an analog model for…”
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Light-Cone Fluctuations in the Cosmic String Spacetime by Mota, H. F, de Mello, E. R. Bezerra, Bessa, C. H. G, Bezerra, V. B

“…Phys. Rev. D 94, 024039 (2016) In this paper we consider light-cone fluctuations arising as a consequence of the nontrivial topology of the locally flat cosmic…”
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A Model for Lightcone Fluctuations due to Stress Tensor Fluctuations by Bessa, C. H. G, De Lorenci, V. A, Ford, L. H, Ribeiro, C. C. H

“…Phys. Rev. D 93, 064067 (2016) We study a model for quantum lightcone fluctuations in which vacuum fluctuations of the electric field and of the squared…”
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Vacuum lightcone fluctuations in a dielectric by Bessa, C.H.G., De Lorenci, V.A., Ford, L.H., Svaiter, N.F.

“…A model for observable effects of time modulated electromagnetic vacuum fluctuations is presented. The model involves a probe pulse which traverses a slab of…”
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An Analog Model for Light Propagation in Semiclassical Gravity by Bessa, C. H. G, De Lorenci, V. A, Ford, L. H

“…Phys. Rev. D 90, 024036 (2014) We treat a model based upon nonlinear optics for the semiclassical gravitational effects of quantum fields upon light…”
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Casimir Energy Corrections by Light-Cone Fluctuations by Arias, E, Bessa, C. H. G, Dueñas, J. G, Menezes, G, Svaiter, N. F

“…We study the effects of light-cone fluctuations on the renormalized zero-point energy associated with a free massless scalar field in the presence of…”
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An analog fluid model for some tachyonic effects in field theory by Arias, E, Bessa, C. H. G, Svaiter, N. F

“…We consider the sound radiation from an acoustic point-like source moving along a supersonic ("space-like") trajectory in a fluid at rest. We call it an…”
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Accelerated detectors in Dirac vacuum: the effects of horizon fluctuations by Bessa, C. H. G, Duenas, J. G, Svaiter, N. F

“…We consider an Unruh-DeWitt detector interacting with a massless Dirac field. Assuming that the detector is moving along an hyperbolic trajectory, we modeled…”
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Quantized fields and gravitational particle creation in f(R) expanding universes by Pereira, S. H, Bessa, C. H. G, Lima, J. A. S

“…Phys.Lett.B690:103-107,2010 The problem of cosmological particle creation for a spatially flat, homogeneous and isotropic Universes is discussed in the context…”
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Vacuum Lightcone Fluctuations in a Dielectric by Bessa, C. H. G, De Lorenci, V. A, Ford, L. H, Svaiter, N. F

“…Ann. Phys. 361, 293 (2015) A model for observable effects of electromagnetic vacuum fluctuations is presented. The model involves a probe pulse which traverses…”
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On the existence of turning points in D-dimensionsal Schwarzschild-de Sitter and anti-de Sitter spacetimes by Bessa, C. H. G, Lima, J. A. S

“…Int.J.Mod.Phys. D13 (2004) 1217-1222 We investigate the motion of a test particle in a d-dimensional, spherically symmetric and static space-time supported by…”
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