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相关论文: Van der Waals force noise

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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

Fluctuations of the thermal or classical component of the van der Waals force between two dielectric slabs, modelled as an ensemble of polarizable dipoles which interact via the usual electrostatic dipole-dipole interaction, are evaluated.…

统计力学 · 物理学 2015-06-15 D. S. Dean , V. A. Parsegian , R. Podgornik

Two interaction mechanisms of particles in a fluid are proposed on base of forces, mediated by hydrodynamic thermal fluctuations. The first one is similar to the conventional van der Waals interaction, but instead of been mediated by…

软凝聚态物质 · 物理学 2009-11-07 B. I. Ivlev

It was thought that the van der Waals force and gravitational force were distinct. Now a model is used to describe the attraction between macroscopic objects according to van der Waals interaction. The force between two objects with thermal…

综合物理 · 物理学 2013-03-18 Lei Zhang

We calculate the friction force between two semi-infinite solids in relative parallel motion (velocity $V$), and separated by a vacuum gap of width $d$. The friction force result from coupling via a fluctuating electromagnetic field, and…

材料科学 · 物理学 2009-11-11 A. I. Volokitin , B. N. J. Persson

Particle number fluctuations are considered within the van der Waals (VDW) equation, which contains both attractive (mean-field) and repulsive (eigenvolume) interactions. The VDW equation is used to calculate the scaled variance of particle…

The mechanical action on matter of the electromagnetic field emitted by a fluctuating source is governed by its statistics. In particular, thermal sources and vacuum fluctuations exert on bodies those well-known Casimir (C) and Van der…

光学 · 物理学 2014-10-28 Manuel Nieto-Vesperinas , Juan Miguel Auñón

Fluctuations in fluid velocity and fluctuations in electric fields may both give rise to forces acting on small particles in colloidal suspensions. Such forces in part determine the thermodynamic stability of the colloid. At the classical…

软凝聚态物质 · 物理学 2013-05-29 D. Drosdoff , A. Widom

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

Equation of state with quantum statistics corrections is derived for a multi-component gas of particles interacting through the repulsive and attractive van der Waals (vdW) forces up to first few orders over a small parameter $\delta…

核理论 · 物理学 2020-12-22 S. N. Fedotkin , A. G. Magner , U. V. Grygoriev

We explain in depth the previously proposed theory of the coherent Van der Waals(cVdW) interaction - the counterpart of Van der Waals (VdW) force - emerging in spatially coherently fluctuating electromagnetic fields. We show that cVdW…

软凝聚态物质 · 物理学 2015-06-22 Igor M. Kulic , Miodrag L. Kulic

The van der Waals (vdW) theory of fluids is the first and simplest theory that takes into account interactions between the particles of a system that result in a phase transition versus temperature. Combined with Maxwell's construction,…

软凝聚态物质 · 物理学 2018-02-12 David C. Johnston

Van der Waals forces as interactions between neutral and polarisable particles act at small distances between two objects. Their theoretical origin lies in the electromagnetic interaction between induced dipole moments caused by the vacuum…

化学物理 · 物理学 2019-06-05 Johannes Fiedler , Clas Persson , Mathias Boström , Stefan Y. Buhmann

Understanding static and dynamic phenomena in complex materials at different length scales requires reliably accounting for van der Waals (vdW) interactions, which stem from long-range electronic correlations. While the important role of…

材料科学 · 物理学 2022-03-23 Paul Hauseux , Alberto Ambrosetti , Stéphane P. A. Bordas , Alexandre Tkatchenko

The van der Waals (VDW) equation of state describes a thermal equilibrium in system of particles, where both repulsive and attractive interactions between them are included. This equation predicts an existence of the 1st order liquid-gas…

核理论 · 物理学 2016-08-25 V. Vovchenko , D. V. Anchishkin , M. I. Gorenstein

Quantum electromagnetic fluctuations induce forces between neutral particles, known as the van der Waals (vdW) and Casimir interactions. These fundamental forces, mediated by virtual photons from the vacuum, play an important role in basic…

量子物理 · 物理学 2021-05-10 Ephraim Shahmoon , Igor Mazets , Gershon Kurizki

Van der Waals torque determines the relative rotational motion between anisotropic objects, being of relevance to low-dimensional systems. Here we demonstrate a substantial torque between anisotropic two-dimensional materials that arises…

计算物理 · 物理学 2024-12-17 Zepu Kou , Yuquan Zhou , Zonghuiyi Jiang , Alexandre Tkatchenko , Xiaofei Liu

Quantum and thermal fluctuations of electromagnetic waves are the cornerstone of quantum and statistical physics, and inherent to such phenomena as thermal radiation and van der Waals forces. While the basic principles are the material of…

其他凝聚态物理 · 物理学 2017-05-24 G. Bimonte , T. Emig , M. Kardar , M. Krüger

Proper inclusion of van der Waals (vdW) interactions in theoretical simulations based on standard density functional theory (DFT) is crucial to describe the physics and chemistry of systems such as organic and layered materials. Many…

材料科学 · 物理学 2023-07-19 Jinwoo Park , Byung Deok Yu , Suklyun Hong

We use a general theory of the fluctuating electromagnetic field to calculate the friction force acting on a small neutral particle, e.g., a physisorbed molecule, or a nanoscale object with arbitrary dispersive and absorptive dielectric…

材料科学 · 物理学 2009-11-11 A. I. Volokitin , B. N. J. Persson
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