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Casimir entropies due to quantum fluctuations in the interaction between electrical bodies can often be negative, either caused by dissipation or by geometry. Although generally such entropies vanish at zero temperature, consistent with the…

高能物理 - 理论 · 物理学 2016-10-19 Yang Li , K. A. Milton , Pushpa Kalauni , Prachi Parashar

We derive the low-temperature behavior of the Casimir-Polder free energy for a polarizable atom interacting with graphene sheet which possesses the nonzero energy gap $\Delta$ and chemical potential $\mu$. The response of graphene to the…

介观与纳米尺度物理 · 物理学 2020-07-01 G. L. Klimchitskaya , V. M. Mostepanenko

In 1948 H.B.G.Casimir predicted that an attractive force between two perfectly conducting neutral plates exists due to changes in the electromagnetic vacuum energy caused by the influence of the plates. In 1956 E.M. Lifshitz derived an…

量子物理 · 物理学 2007-05-23 Karen Windmeier Wetz

We study the finite temperature Casimir interaction between a cylinder and a plate using the exact formula derived from the Matsubara representation and the functional determinant representation. We consider the scalar field with Dirichlet…

量子物理 · 物理学 2011-08-12 L. P. Teo

This paper presents the results of calculating Casimir-Lifshitz friction force and heating rate of a small metal particle moving above a metal surface (thick plate) in the case of their different local temperatures. The case of normal…

介观与纳米尺度物理 · 物理学 2022-12-21 G. V. Dedkov

Recently, H{\o}ye, Brevik, Ellingsen and Aarseth (quant-ph/0703174) claimed that the use of the Drude dielectric function leads to zero Casimir entropy at zero temperature in accordance with Nernst's theorem. We demonstrate that their proof…

量子物理 · 物理学 2008-11-26 G. L. Klimchitskaya , V. M. Mostepanenko

We compare theoretical expectations for the Casimir force with the results of precise measurements. The force is calculated at finite temperature for multilayered covering of the bodies using the Lifshitz theory. We argue that the…

量子物理 · 物理学 2007-05-23 V. B. Svetovoy , M. V. Lokhanin

Finite temperature Casimir theory of the Dirichlet scalar field is developed, assuming that there is a conventional Casimir setup in physical space with two infinitely large plates separated by a gap R and in addition an arbitrary number q…

高能物理 - 理论 · 物理学 2014-11-18 Marianne Rypestøl , Iver Brevik

In this work I study the finite temperature Casimir effect caused by a complex and massive scalar field that breaks Lorentz invariance in a CPT-even, aether-like manner. The Lorentz invariance breaking is caused by a constant space-like…

高能物理 - 理论 · 物理学 2025-12-25 Andrea Erdas

We develop a new theory for Casimir-Lifshitz and Casimir-Polder interactions with semiconductor surfaces that takes into account charge drift in the bulk material. The corresponding frequency-dependent dispersion relations describe a…

量子物理 · 物理学 2009-11-13 Diego A. R. Dalvit , Steve K. Lamoreaux

We use a functional approach to evaluate the Casimir free energy for a self-interacting scalar field in $d+1$ dimensions, satisfying Dirichlet boundary conditions on two parallel planes. When the interaction is turned off, exact results for…

高能物理 - 理论 · 物理学 2008-09-16 Claudio Ccapa Ttira , Cesar D. Fosco

The statistical mechanical approach to Casimir problems for dielectrics separated by a vacuum gap turns out to be compact and effective. A central ingredient of this method is the effect of interacting fluctuating dipole moments of the…

量子物理 · 物理学 2009-06-10 Johan S. Høye , Iver Brevik

The van der Waals and Casimir-Polder interaction energy of an atom with an infinitely thin sphere with finite conductivity is investigated in the framework of the hydrodynamic approach at finite temperature. This configuration models the…

量子物理 · 物理学 2012-06-11 Nail R. Khusnutdinov

The Casimir-Polder-Lifshitz force felt by an atom near the surface of a substrate is calculated out of thermal equilibrium in terms of the dielectric function of the material and of the atomic polarizability. The new force decays like…

统计力学 · 物理学 2007-05-23 Mauro Antezza , Lev P. Pitaevskii , Sandro Stringari

We study the radiative heat transfer and the Casimir-Lifshitz force occurring between two bodies in a system out of thermal equilibrium. We consider bodies of arbitrary shape and dielectric properties, held at two different temperatures,…

量子物理 · 物理学 2015-05-30 Riccardo Messina , Mauro Antezza

The interaction between arbitrary dielectric heterostructures is studied within the framework of a recently developed dielectric contrast perturbation theory. It is shown that periodically patterned dielectric or metallic structures lead to…

量子物理 · 物理学 2015-05-13 Arash Azari , Himadri S. Samanta , Ramin Golestanian

We study thermal conductivity in the disordered two-dimensional electron liquid in the presence of long-range Coulomb interactions. We describe a microscopic analysis of the problem using as a starting point the partition function defined…

介观与纳米尺度物理 · 物理学 2016-06-22 G. Schwiete , A. M. Finkel'stein

We compute the thermoelectric and thermal transport in the weakly disordered non-Fermi liquid phase of the Luttinger semimetals at zero doping, where the decay rate associated with the (strong) Coulomb interactions is much larger than the…

强关联电子 · 物理学 2024-06-25 Hermann Freire , Ipsita Mandal

A general theory of photon-mediated energy and momentum transfer in N-body planar systems out of thermal equilibrium is introduced. It is based on the combination of the scattering theory and the fluctuational-electrodynamics approach in…

介观与纳米尺度物理 · 物理学 2017-05-04 Ivan Latella , Philippe Ben-Abdallah , Svend-Age Biehs , Mauro Antezza , Riccardo Messina

We investigate the thermal Casimir force between two parallel plates made of different isotropic materials which are separated by a uniaxial anisotropic film. Numerical computations of the Casimir pressure at T=300K are performed using the…

量子物理 · 物理学 2015-08-24 V. M. Mostepanenko