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In pure anisotropic or layered superconductors thermal fluctuations induce a van der Waals attraction between flux lines. This attraction together with the entropic repulsion has interesting consequences for the low field phase diagram; in…

统计力学 · 物理学 2009-10-31 Andreas Volmer , Moshe Schwartz

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

We consider a nematic liquid crystal confined by two parallel flat substrates whose anchoring conditions vary periodically in one lateral direction. Within the Gaussian approximation, we study the effective forces between the patterned…

软凝聚态物质 · 物理学 2009-11-11 F. Karimi Pour Haddadan , S. Dietrich

It is an undisputed textbook fact that non-retarded van der Waals (vdW) interactions between isotropic dimers are attractive, regardless of the polarizability of the interacting systems or spatial dimensionality. The universality of vdW…

介观与纳米尺度物理 · 物理学 2017-05-31 Mainak Sadhukhan , Alexandre Tkatchenko

We consider the effective interaction between electrons due to the exchange of virtual acoustic waves in a low temperature plasma. Electrons are supposed to participate in rapid radial oscillations forming a spherically symmetric plasma…

等离子体物理 · 物理学 2012-01-04 Maxim Dvornikov

We use the theory of the fluctuating electromagnetic field to calculate the frictional drag between nearby two-and three dimensional electron systems. The frictional drag results 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

Two overall neutral surfaces with positive and negative charged domains ("patches") have been shown in recent experiments to exhibit long-range attraction when immersed in an ionic solution. Motivated by the experiments, we calculate…

软凝聚态物质 · 物理学 2016-08-31 Ram M. Adar , David Andelman , Haim Diamant

A new electromagnetic plasma mode has been discovered in the hybrid system formed by a highly conductive gate strip placed in proximity to the two-dimensional electron system. The new plasmon mode propagates along the gate strip with no…

介观与纳米尺度物理 · 物理学 2019-07-03 V. M. Muravev , P. A. Gusikhin , A. M. Zarezin , I. V. Andreev , S. I. Gubarev , I. V. Kukushkin

Clear evidence for a positive correlation is established between the magnitude of magnetic fluctuations in the lower-hybrid frequency range and enhancement of reconnection rates in a well-controlled laboratory plasma. The fluctuations…

天体物理学 · 物理学 2009-11-07 Hantao Ji , Stephen Terry , Masaaki Yamada , Russell Kulsrud , Aleksey Kuritsyn , Yang Ren

For the first time, we calculate the heating rate, attractive conservative and tangential dissipative fluctuation electromagnetic forces felt by a thick plate moving parallel to a closely spaced another plate in rest using a nonrelativistic…

其他凝聚态物理 · 物理学 2009-04-02 G. V. Dedkov , A. A. Kyasov

We show that classical many-particle systems interacting with certain soft pair interactions in two dimensions exhibit novel low-temperature behaviors. Ground states span from disordered to crystalline. At some densities, a large fraction…

统计力学 · 物理学 2009-07-03 Robert D. Batten , Frank H. Stillinger , Salvatore Torquato

In this research we report the dielectric response of a finite temperature electron gas, electrostatically interacting with both external and self-induced plasmonic fields, in the well-known random phase approximation. The generalized…

等离子体物理 · 物理学 2022-11-16 M. Akbari-Moghanjoughi

We generalize the predictions for attractions between over-all neutral surfaces induced by charge fluctuations/correlations to non-uniform systems that include dielectric discontinuities, as is the case for mixed charged lipid membranes in…

软凝聚态物质 · 物理学 2009-10-31 Rebecca Menes , Philip Pincus , Bean Stein

Electromagnetic vacuum fluctuations have observable consequences, like the Casimir force between mirrors in vacuum. This force is now measured with good accuracy and agreement with theory when the effect of imperfect reflection of mirrors…

量子物理 · 物理学 2007-05-23 Cyriaque Genet , Francesco Intravaia , Astrid Lambrecht , Serge Reynaud

Using the plasma model for the metal dielectric function we have calculated the electromagnetic fluctuation induced forces on a free standing metallic film in vacuum as a function of the film size and the plasma frequency. The force for…

量子物理 · 物理学 2009-11-13 Andrea Benassi , Carlo Calandra

Interactions induced by electromagnetic fluctuations, such as van der Waals and Casimir forces, are of universal nature present at any length scale between any types of systems with finite dimensions. Such interactions are important not…

The nature of electrostatic interaction between like-charged particles at water-air interface is analyzed in this paper. We show that long-ranged electrostatic dipolar attraction between these objects generally exists. Our result provides a…

软凝聚态物质 · 物理学 2007-05-23 Yi Zhou , Tai-Kai Ng

The zero-point quantum fluctuations of the electromagnetic field in vacuum are known to give rise to a long-range attractive force between metal plates (Casimir effect). For ferromagnetic layers separated by vacuum, it is shown that the…

量子物理 · 物理学 2009-11-07 P. Bruno

A generic outcome of theories with scalar-tensor coupling is the existence of inflationary attractors, either power-law or de Sitter. The fluctuations arising during this phase are Gaussian and their spectrum depends on the wavenumber $k$…

广义相对论与量子宇宙学 · 物理学 2009-10-22 Luca Amendola , Diego Bellisai , Franco Occhionero , Rome Astronomical Observatory

A net force can arise on objects which lie in systems with complex energy partitions, even if the system is on average stationary. These forces are usually called fluctuation forces, as they arise due to the objects modifying the character…

流体动力学 · 物理学 2023-09-15 Daniel Putt , Rodolfo Ostilla-Mónico