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相关论文: Thermal Casimir effect for neutrino and electromag…

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In the present paper we investigate thermal fluctuation corrections to the vacuum energy at zero temperature of a conformally coupled massless scalar field whose modes propagate in the Einstein universe with a spherical boundary,…

高能物理 - 理论 · 物理学 2022-11-18 Herondy F. S. Mota , Celio R. Muniz , Valdir B. Bezerra

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 whose periodicity is oriented along a vector in $xy$-plane.…

高能物理 - 理论 · 物理学 2025-09-03 Joás Venâncio , Lameque Filho , Herondy Mota , Azadeh Mohammadi

In this work we consider the generalized zeta function method to obtain temperature corrections to the vacuum (Casimir) energy density, at zero temperature, associated with quantum vacuum fluctuations of a scalar field subjected to a helix…

高能物理 - 理论 · 物理学 2021-08-25 Giulia Aleixo , Herondy Mota

The Casimir effect for Dirac as well as for scalar charged particles is influenced by external magnetic fields. It is also influenced by finite temperature. Here we consider the Casimir effect for a charged scalar field under the combined…

高能物理 - 理论 · 物理学 2007-05-23 M. V. Cougo-Pinto , C. Farina , M. R. Negrao , A. Tort

We derive rigorously explicit formulas of the Casimir free energy at finite temperature for massless scalar field and electromagnetic field confined in a closed rectangular cavity with different boundary conditions by zeta regularization…

高能物理 - 理论 · 物理学 2009-11-13 S. C. Lim , L. P. Teo

In this note we calculate the Casimir effect of free thermal gravitons in Einstein universe and discuss how it changes the entropy bound condition proposed recently by Verlinde [hep-th/0008140] as a higher dimensional generalization of…

高能物理 - 理论 · 物理学 2009-10-31 Feng-Li Lin

We compute the finite temperature Casimir energy for massive scalar field with general curvature coupling subject to Dirichlet or Neumann boundary conditions on the walls of a closed cylinder with arbitrary cross section, located in a…

高能物理 - 理论 · 物理学 2009-12-04 L. P. Teo

The vacuum energy density of electromagnetic field inside a perfectly conducting wedge is calculated by making use of the local zeta function technique. This regularization completely eliminates divergent expressions in the course of…

高能物理 - 理论 · 物理学 2009-11-07 V. V. Nesterenko , G. Lambiase , G. Scarpetta

Starting from an analytical expression for the Helmholtz free energy we calculate the thermal corrections to the Casimir energy-density and entropy within nearby ideal parallel plates in the vacuum of a massless scalar field. Our framework…

广义相对论与量子宇宙学 · 物理学 2017-11-23 V. B. Bezerra , H. R. Christiansen , M. S. Cunha , C. R. Muniz , M. O. Tahim

The basic results in calculations of the thermodynamic functions of electromagnetic field in the background of a dilute dielectric ball at zero and finite temperature are presented. Summation over the angular momentum values is accomplished…

高能物理 - 理论 · 物理学 2009-11-07 V. V. Nesterenko , G. Lambiase , G. Scarpetta

We calculate the Casimir energy for scalar and gauge fields in interaction with zero-width mirrors, including quantum effects due to the matter fields inside the mirrors. We consider models where those fields are either scalar or fermionic,…

高能物理 - 理论 · 物理学 2008-11-26 C. D. Fosco , F. C. Lombardo , F. D. Mazzitelli

We introduce a useful approach to find asymptotically explicit expressions for the Casimir free energy at large temperature. The resulting expressions contain the classical terms as well as the few first terms of the corresponding…

高能物理 - 理论 · 物理学 2019-03-18 Y. Koohsarian , K. Javidan

The energy of fluctuating electromagnetic field is investigated for the thermal Casimir force acting between parallel plates made of real metal. It is proved that for nondissipative media with temperature independent dielectric permittivity…

量子物理 · 物理学 2009-11-07 V. B. Bezerra , G. L. Klimchitskaya , V. M. Mostepanenko

We study the finite-temperature Casimir effect for a massless scalar field confined between two parallel plates in a Schwarzschild-like wormhole spacetime. Imposing Dirichlet boundary conditions, we compute the renormalized Casimir free…

高能物理 - 理论 · 物理学 2026-05-27 Arista Romadani , Apriadi Salim Adam , Ar Rohim , Bintoro Anang Subagyo , Agus Purwanto

In this paper, a massless scalar field coupled to gravity is considered. Then the Casimir effect at finite temperature is calculated. Such development is carried out in the Thermo Field Dynamics formalism. This approach presents a…

高能物理 - 理论 · 物理学 2022-10-07 A. F. Santos , Faqir C. Khanna

The analytic asymptotic expressions for the Casimir free energy and entropy for two parallel graphene sheets possessing nonzero energy gap $\Delta$ and chemical potential $\mu$ are derived at arbitrarily low temperature. Graphene is…

其他凝聚态物理 · 物理学 2020-07-15 G. L. Klimchitskaya , V. M. Mostepanenko

We derive perturbation analytic expressions for the Casimir free energy and entropy between two dissimilar ferromagnetic plates which are applicale at arbitrarily low temperature. The dielectric properties of metals are described using…

量子物理 · 物理学 2015-07-24 G. L. Klimchitskaya , C. C. Korikov

We study the Casimir effect at finite temperature for a massless scalar field in the parallel plates geometry in N spatial dimensions, under various combinations of Dirichlet and Neumann boundary conditions on the plates. We show that in…

量子物理 · 物理学 2008-11-26 S. Rubin , J. Feinberg , A. Mann , M. Revzen

Casimir entropy is an important aspect of casimir effect.In this paper,we employ the path integral method to derive the total relation for casimir entropy and internal energy of arbitrary shaped objects in the presence of two,three and four…

量子物理 · 物理学 2017-01-05 Marjan Jafari

The Casimir interaction between two thick parallel plates, one made of metal and the other of dielectric, is investigated at nonzero temperature. It is shown that in some temperature intervals the Casimir pressure and the free energy of a…

量子物理 · 物理学 2009-11-11 B. Geyer , G. L. Klimchitskaya , V. M. Mostepanenko
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