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The Casimir effect, reflecting quantum vacuum fluctuations in the electromagnetic field in a region with material boundaries, has been studied both theoretically and experimentally since 1948. The forces between dielectric and metallic…

量子物理 · 物理学 2009-11-13 Iver Brevik , Simen A. Ellingsen , Kimball A. Milton

This work addresses a longstanding theoretical discrepancy using Density Functional Theory (DFT) with experimental observations of CO binding trends on electrocatalytically relevant metals for the CO2 reduction reaction (CO2RR). By…

The general theory of electromagnetic--fluctuation--induced interactions in dielectric bodies as formulated by Dzyaloshinskii, Lifshitz, and Pitaevskii is rewritten as a perturbation theory in terms of the spatial contrast in (imaginary)…

量子物理 · 物理学 2009-07-14 Ramin Golestanian

We study fluctuation electromagnetic interaction between small neutral rotating particle and polarizable surface. The attraction force, friction torque and heating are produced by the particle polarization and fluctuating near-field of the…

其他凝聚态物理 · 物理学 2012-10-29 G. V. Dedkov , A. A. Kyasov

The transition of van der Waals to Casimir forces between macroscopic gold surfaces is investigated by Atomic Force Microscopy in the plane-sphere geometry. It was found that the transition appears to take place at separations about 10 %…

材料科学 · 物理学 2009-11-13 G. Palasantzas , P. J. van Zwol , J. Th. M. De Hosson

We develop fluctuational electrodynamics for media with nonlinear optical response in and out of thermal equilibrium. Starting from the stochastic nonlinear Helmholtz equation and using the fluctuation dissipation theorem, we obtain…

量子物理 · 物理学 2018-01-17 Heino Soo , Matthias Krüger

The Casimir force between two ideal conducting surfaces is a special (zero temperature) limit of a more general theory due to Lifshitz. The temperature dependent theory includes correlations in coupled quantum and classical fluctuation…

量子物理 · 物理学 2020-07-03 L. R. Fisher , B. W. Ninham

We present an approach for computing long-range van der Waals (vdW) interactions between complex molecular systems and arbitrarily shaped macroscopic bodies, melding atomistic treatments of electronic fluctuations based on density…

介观与纳米尺度物理 · 物理学 2017-07-05 Prashanth S. Venkataram , Jan Hermann , Alexandre Tkatchenko , Alejandro W. Rodriguez

For more than 35 years theorists have studied quantum or Casimir friction, which occurs when two smooth bodies move transversely to each other, experiencing a frictional dissipative force due to quantum electromagnetic fluctuations, which…

量子物理 · 物理学 2016-05-17 K. A. Milton , J. S. Høye , I. Brevik

Based on the fluctuation-electromagnetic theory, we have calculated the retarded force of attraction, frictional moment and heating rate of a neutral particle rotating near a polarizable surface. The particle and surface are characterized…

介观与纳米尺度物理 · 物理学 2013-04-01 A. A. Kyasov , G. V. Dedkov

We study the spatial fluctuations of the Casimir-Polder force experienced by an atom or a small sphere moved above a metallic plate at fixed separation distance. We demonstrate that unlike the mean force, the magnitude of these fluctuations…

Radiative heat exchange of spherical particles between each other and with thick polarizable plates is studied in the framework of fluctuation electrodynamics. An additive dipole approximation for the thermal conductance of micrometer sized…

其他凝聚态物理 · 物理学 2011-02-18 G. V. Dedkov , A. A. Kyasov

We generalize the formalism proposed by Dalibard, Dupont-Roc, and Cohen-Tannoudji [the DDC formalism] in the fourth order for two atoms in interaction with scalar fields in vacuum to a thermal bath at finite temperature $T$, and then…

高能物理 - 理论 · 物理学 2022-11-22 Shijing Cheng , Wenting Zhou , Hongwei Yu

The applicability of the Lifshitz formula is discussed to the case of two thick parallel plates made of real metal. The usual description of the zero-point vacuum oscillations on the background of the frequency-dependent dielectric…

量子物理 · 物理学 2007-05-23 V. M. Mostepanenko , A. O. Caride , G. L. Klimchitskaya , S. I. Zanette

We investigate the thermodynamical aspects of the Casimir effect in the case of plane parallel plates made of real metals. The thermal corrections to the Casimir force between real metals were recently computed by several authors using…

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

It has been known that the Lifshitz theory of the Casimir force comes into conflict with the measurement data if the response of conduction electrons in metals to electromagnetic fluctuations is described by the well tested dissipative…

量子物理 · 物理学 2022-01-07 G. L. Klimchitskaya , V. M. Mostepanenko

The Casimir force between arbitrary objects in equilibrium is related to scattering from individual bodies. We extend this approach to heat transfer and Casimir forces in non-equilibrium cases where each body, and the environment, is at a…

量子物理 · 物理学 2014-10-31 Matthias Krüger , Thorsten Emig , Mehran Kardar

Van der Waals-Casimir dispersion interactions between two apposed graphene layers, a graphene layer and a substrate, and in a multilamellar graphene system are analyzed within the framework of the Lifshitz theory. This formulation hinges on…

介观与纳米尺度物理 · 物理学 2015-05-28 Jalal Sarabadani , Ali Naji , Reza Asgari , Rudolf Podgornik

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

The retarded Van der Waals force between a polarizable particle and a perfectly conducting plate is re-examined. The expression for this force given by Casimir and Polder represents a mean force, but there are large fluctuations around this…

量子物理 · 物理学 2009-11-07 Chun-Hsien Wu , Chung-I Kuo , L. H. Ford