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相关论文: What is the Regularized Casimir Vacuum Energy Dens…

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In this paper, we presented the zero- and first-order radiative corrections to the Casimir energy for a massive scalar field confined with Dirichlet boundary condition in an open-ended rectangular waveguide. In the calculation procedure, we…

高能物理 - 理论 · 物理学 2018-08-09 M. A. Valuyan

The vacuum expectation value of the electromagnetic energy-momentum tensor between two parallel plates in spacetime dimensions D > 4 is calculated in the axial gauge. While the pressure between the plates agrees with the global Casimir…

高能物理 - 唯象学 · 物理学 2008-11-26 H. Alnes , K. Olaussen , F. Ravndal , I. K. Wehus

The vacuum energy for a massless conformally coupled scalar field in a brane world set up, corresponding to de Sitter branes in a bulk anti-de Sitter spacetime, is calculated. We use the Euclidean version of the metric which can be…

高能物理 - 理论 · 物理学 2009-10-09 Wade Naylor , Misao Sasaki

We calculate the gravitational self-energy of vacuum quantum field fluctuations using a Casimir approach. We find that the Casimir gravitational self-energy density can account for the measured dark energy density when the SUSY-breaking…

高能物理 - 理论 · 物理学 2007-05-23 Allan Rosencwaig

The Casimir effect for rectangular boxes has been studied for several decades. But there are still some points unclear. Recently, there are new developments related to this topic, including the demonstration of the equivalence of the…

高能物理 - 理论 · 物理学 2014-12-03 Xiang-Hua Zhai , Rui-Hui Lin , Chao-Jun Feng , Xin-Zhou Li

The ground state energy of a boundary quantum field theory is derived in planar geometry in D+1 dimensional spacetime. It provides a universal expression for the Casimir energy which exhibits its dependence on the boundary conditions via…

高能物理 - 理论 · 物理学 2009-11-11 Z. Bajnok , L. Palla , G. Takacs

The Casimir stress on a spherical shell in de Sitter background for massless scalar field satisfying Dirichlet boundary conditions on the shell is calculated. The metric is written in conformally flat form. Although the metric is time…

广义相对论与量子宇宙学 · 物理学 2009-10-31 M. R. Setare , R. Mansouri

We explore two hypotheses. First, the possibility that the quantum vacuum energy density of the Casimir effect contributes to a (local) gravitational vacuum energy density. Second, the possibility that a change in the gravitational coupling…

高能物理 - 理论 · 物理学 2023-11-14 Benjamin Koch , Christian Käding , Mario Pitschmann , René Sedmik

We investigate the renormalized vacuum expectation values of the field square and the energy-momentum tensor for the electromagnetic field inside and outside of a conducting cylindrical shell in the cosmic string spacetime. By using the…

高能物理 - 理论 · 物理学 2008-11-26 E. R. Bezerra de Mello , V. B. Bezerra , A. A. Saharian

Analytical arguments suggest that the Casimir energy in 2+1 dimensions for gauge theories exponentially decays with the distance between the boundaries. The phenomenon has also been observed by non-perturbative numerical simulations. The…

高能物理 - 理论 · 物理学 2025-01-31 Manuel Asorey , Fernando Ezquerro , Miguel Pardina

The Casimir energy is calculated in one-, two-, and three-dimensional spaces for the field with generalized coordinates and momenta satisfying the deformed Poisson brackets leading to the minimal length.

量子物理 · 物理学 2008-11-26 Ivan Vakarchuk

Zero-point energy is generally known to be unphysical. Casimir effect, however, is often presented as a counterexample, giving rise to a conceptual confusion. To resolve the confusion we study foundational aspects of Casimir effect at a…

量子物理 · 物理学 2017-08-23 H. Nikolic

If quantum fields exist in extra compact dimensions, they will give rise to a quantum vacuum or Casimir energy. That vacuum energy will manifest itself as a cosmological constant. The fact that supernova and cosmic microwave background data…

高能物理 - 唯象学 · 物理学 2014-12-10 Kimball A. Milton , Ronald Kantowski , Chung Kao , Yun Wang

We compute the expectations of the squares of the electric and magnetic fields in the vacuum region outside a half-space filled with a uniform non-dispersive dielectric. This gives predictions for the Casimir-Polder force on an atom in the…

高能物理 - 理论 · 物理学 2008-11-26 Adam D. Helfer , Andrew S. I. D. Lang

In the study of quantum vacuum energy and the Casimir effect, it is desirable to model the conductor by a potential of the form $V(z)=z^\alpha$. This "soft wall" model was proposed so as to avoid the violation of the principle of virtual…

高能物理 - 理论 · 物理学 2022-06-09 Agam Shayit , S. A. Fulling , T. E. Settlemyre , Joseph Merritt

We review and assess a part of the recent work on Casimir apparatuses in the weak gravitational field of the Earth. For a free, real massless scalar field subject to Dirichlet or Neumann boundary conditions on the parallel plates, the…

高能物理 - 理论 · 物理学 2010-10-19 Giuseppe Bimonte , Enrico Calloni , Giampiero Esposito , George M. Napolitano , Luigi Rosa

We investigate the Casimir effect for a massless scalar field confined between two parallel semitransparent mirrors in a vacuum modified by spontaneous Lorentz symmetry breaking. Using Green's function techniques and a point-splitting…

高能物理 - 理论 · 物理学 2025-10-01 Román Linares , C. A. Escobar , A. Martín-Ruiz , E. Plácido

This comment is devoted to the recalculation of the Casimir energy of a massless scalar field in the Kerr black hole surrounded by quintessence derived in [B. Toshmatov, Z. Stuchl\'{i}k and B. Ahmedov, Eur. Phys. J. Plus {\bf 132}, 98…

广义相对论与量子宇宙学 · 物理学 2017-07-04 Bobir Toshmatov , Zdeněk Stuchlík , Bobomurat Ahmedov

We consider the Casimir effect for a scalar field interacting with another scalar field that is confined to two half spaces. This model is aimed to mimic the interaction of the photon field with matter in two slabs. We use Dirichlet…

量子物理 · 物理学 2018-03-23 Michael Bordag , Irina G. Pirozhenko

Considering the vacuum as characterized by the presence of only the gravitational field, we show that the vacuum energy density of the de Sitter space, in the realm of the teleparallel equivalent of general relativity, can acquire…

广义相对论与量子宇宙学 · 物理学 2007-05-23 J. W. Maluf , J. F. da Rocha-Neto