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We study the influence of a background uniform magnetic field and boundary conditions on the vacuum of a quantized charged spinor matter field confined between two parallel neutral plates; the magnetic field is directed orthogonally to the…

高能物理 - 理论 · 物理学 2015-05-06 Yu. A. Sitenko

We consider a Casimir apparatus consisting of two perfectly conducting parallel plates, subject to the weak gravitational field of the Earth. The aim of this paper is the calculation of the energy-momentum tensor of this system for a free,…

高能物理 - 理论 · 物理学 2008-11-26 George M. Napolitano , Giampiero Esposito , Luigi Rosa

We evaluate the fermionic Casimir effect associated with a massive fermion confined within a planar (d+1) dimensional slab-bag, on which MIT bag model boundary conditions of standard type, along a single spatial direction, are imposed. A…

高能物理 - 理论 · 物理学 2009-11-07 E. Elizalde , F. C. Santos , A. C. Tort

We investigate the vacuum expectation value of the surface energy-momentum tensor (SEMT) for a scalar field with general curvature coupling in the geometry of two branes orthogonal to the boundary of anti-de Sitter (AdS) spacetime. For…

高能物理 - 理论 · 物理学 2024-01-23 A. A. Saharian

We study the quantum effects induced by bulk scalar fields in a model with a de Sitter (dS) brane in a flat bulk (the Vilenkin-Ipser-Sikivie model) in more than four dimensions. In ordinary dS space, it is well known that the stress tensor…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Oriol Pujolas , Takahiro Tanaka

The vacuum expectation values of the field squared and the energy-momentum tensor are investigated for a scalar field with Dirichlet boundary conditions and for the electromagnetic field inside a wedge with a coaxial cylindrical boundary.…

高能物理 - 理论 · 物理学 2011-06-10 A. A. Saharian

We consider a single 3-brane sitting in between two different five dimensional spacetimes. On each side of the brane, the bulk is a solution to Gauss-Bonnet gravity, although the bare cosmological constant, funda mental Planck scale, and…

高能物理 - 理论 · 物理学 2009-11-10 Antonio Padilla

We evaluate the effective action for the Dynamical Casimir Effect (DCE) for a real scalar field in d+1 dimensions within the worldline formulation of quantum field theory. The scalar field is coupled to a spacetime-dependent mass term,…

高能物理 - 理论 · 物理学 2026-04-16 C. D. Fosco , B. C. Guntsche

In this paper we examine Casimir effect in the case of tachyonic field, which is connected with particles with negative four-momentum square. We consider here only the case of one dimensional, scalar field. In order to describe tachyonic…

高能物理 - 理论 · 物理学 2015-06-26 Marcin Ostrowski

We analyze the Casimir densities and forces associated with a massive scalar quantum field confined between two parallel plates in a D-dimensional cosmic string spacetime. The plates are placed orthogonal to the string and the field obeys…

高能物理 - 理论 · 物理学 2018-05-03 E. R. Bezerra de Mello , A. A. Saharian , S. V. Abajyan

We compute the vacuum energy of a scalar field rotating with angular velocity $\Omega$ on a disk of radius $R$ and with Dirichlet boundary conditions. The rotation is introduced by a metric obtained by a Galilean transformation from a rest…

高能物理 - 理论 · 物理学 2025-06-09 M. Bordag , I. G. Pirozhenko

We present a rigorous, regularization independent local quantum field theoretic treatment of the Casimir effect for a quantum scalar field of mass $\mu\ne0$ which yields closed form expressions for the energy density and pressure. As an…

广义相对论与量子宇宙学 · 物理学 2015-05-13 G. Gazzola , M. C. Nemes , W. F. Wreszinski

Non-local boundary conditions have been considered in theoretical high-energy physics with emphasis on one-loop quantum cosmology, one-loop conformal anomalies, Bose-Einstein condensation models and spectral branes. We have therefore…

高能物理 - 理论 · 物理学 2008-11-26 Aram Saharian , Giampiero Esposito

As a continuation of the work in \cite{mns}, we discuss the Casimir effect for a massless bulk scalar field in a 4D toy model of a 6D warped flux compactification model,to stabilize the volume modulus. The one-loop effective potential for…

高能物理 - 理论 · 物理学 2008-11-26 Emilio Elizalde , Masato Minamitsuji , Wade Naylor

We revisit the Casimir effect for two concentric spherical shells in de Sitter background with a new geometric configuration, namely Euclidean signature between and Lorentzian signature outside the spheres with different cosmological…

广义相对论与量子宇宙学 · 物理学 2009-05-03 F. Darabi

We study the stabilization of one spatial dimension in (p+1+1)-dimensional spacetime in the presence of $p$-dimensional brane(s), a bulk cosmological constant and the Casimir force generated by a conformally coupled scalar field. We find…

高能物理 - 唯象学 · 物理学 2009-10-31 Ralf Hofmann , Panagiota Kanti , Maxim Pospelov

Complete set of modes and the Hadamard function are constructed for a scalar field inside and outside a sphere in (D+1)-dimensional de Sitter spacetime foliated by negative constant curvature spaces. We assume that the field obeys Robin…

高能物理 - 理论 · 物理学 2021-09-29 A. A. Saharian , T. A. Petrosyan

We demonstrate that the static ground state atom, which interacts with a conformally coupled massless scalar field in the de Sitter invariant vacuum, can obtain a position-dependent energy-level shift and this shift could cause a…

广义相对论与量子宇宙学 · 物理学 2015-06-19 Zehua Tian , Jiliang Jing

The linearized Einstein field equations with the renormalized stress tensor of a massless quantum scalar field as source are solved in the 4-dimensional spacetime near an infinite plane boundary. The motion of particles and light is…

高能物理 - 理论 · 物理学 2013-04-24 V. A. De Lorenci , L. G. Gomes , E. S. Moreira

In this paper we examine the Casimir effect for charged fields in presence of external magnetic field. We consider scalar field (connected with spinless particles) and the Dirac field (connected with 1/2-spin particles). In both cases we…

高能物理 - 理论 · 物理学 2007-05-23 Marcin Ostrowski