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Optical dispersion spectra at energies up to 30 eV play a vital role in understanding the chirality-dependent van der Waals London dispersion interactions of single wall carbon nanotubes (SWCNTs). We use one-electron theory based…

Mesoscale and Nanoscale Physics · Physics 2012-11-02 Rick F. Rajter , Roger H. French , W. Y. Ching , Rudolf Podgornik , V. Adrian Parsegian

The long-range interaction between two atoms and the long-range interaction between an ion and an electron are compared at small and large intersystem separations. The vacuum dressed atom formalism is applied and found to provide a…

Atomic Physics · Physics 2010-09-17 James F. Babb

The interlayer coupling, which has a strong influence on the properties of van der Waals heterostructures, strongly depends on the interlayer distance. Although considerable theoretical interest has been demonstrated, experiments exploiting…

We present experiments in which the interaction of a single gold nanoparticle with glass substrates or with another gold particle can be tuned by in-situ control of their separations using scanning probe technology. We record the plasmon…

Quantum Physics · Physics 2016-03-28 U. Håkanson , M. Agio , S. Kühn , L. Rogobete , T. Kalkbrenner , V. Sandoghdar

Ubiquitous Van der Waals interactions between atoms and molecules are important for many molecular and solid structures. These systems are often studied from first principles using the Density Functional Theory (DFT). However, the commonly…

Materials Science · Physics 2009-11-13 Pier Luigi Silvestrelli

We study the attractive interactions between rod-like charged polymers in solution that appear in the presence of multi-valence counterions. The counterions condensed to the rods exhibit both a strong transversal polarization and a…

Soft Condensed Matter · Physics 2009-10-31 Francisco J. Solis , Monica Olvera de la Cruz

Compounds with two-dimensional (2D) layers of magnetic ions weakly connected by van der Waals bonding offer routes to enhance quantum behavior, stimulating both fundamental and applied interest. CrPS4 is one such magnetic van der Waals…

Strongly Correlated Electrons · Physics 2020-07-07 S. Calder , A. V. Haglund , Y. Liu , D. M. Pajerowski , H. B. Cao , T. J. Williams , V. O. Garlea , D. Mandrus

Van der Waals (vdW) and Casimir interactions depend crucially on material properties and geometry, especially at molecular scales, and temperature can produce noticeable relative shifts in interaction characteristics. Despite this, common…

Mesoscale and Nanoscale Physics · Physics 2020-05-12 Prashanth S. Venkataram , Jan Hermann , Teerit J. Vongkovit , Alexandre Tkatchenko , Alejandro W. Rodriguez

At nanometer separation, the dominant interaction between an atom and a material surface is the fluctuation-induced Casimir-Polder potential. We demonstrate that slow atoms crossing a silicon nitride transmission nanograting are a…

Atomic Physics · Physics 2021-10-26 C Garcion , N Fabre , H Bricha , F Perales , S Scheel , M Ducloy , G Dutier

A model of polar fluid is studied theoretically. The interaction potential, in addition to dipole-dipole term, possesses a dispersion contribution of the van der Waals-London form. It is found that when the dispersion force is comparable to…

Soft Condensed Matter · Physics 2009-10-31 Yan Levin , Paulo S. Kuhn , Marcia C. Barbosa

We obtain analytically the exact non-retarded dispersive interaction energy between an atom and a perfectly conducting disc. We consider the atom in the symmetry axis of the disc and assume the atom is predominantly polarizable in the…

High Energy Physics - Theory · Physics 2016-03-09 Reinaldo de Melo e Souza , W. J. M. Kort-Kamp , C. Sigaud , C. Farina

The aim of these lectures is to give a self-contained introduction to nonrelativistic potential models, to their formulation as well as to their possible applications. At the price of some lack of (in a mathematical sense) rigorous…

High Energy Physics - Phenomenology · Physics 2007-05-23 Wolfgang Lucha , Franz F. Schöberl

The van der Waals (vdW) interaction plays a prominent role between neutral objects at separations where short ranged chemical forces are negligible. This type of dispersive coupling is determined by the interplay between geometry and…

Mesoscale and Nanoscale Physics · Physics 2022-06-02 Dai-Nam Le , Pablo Rodriguez-Lopez , Lilia M. Woods

A generalization of the quantum van der Waals equation of state for a multi-component system in the grand canonical ensemble is proposed. The model includes quantum statistical effects and allows to specify the parameters characterizing…

The van der Waals (vdW) dispersion interaction between two finite neutral objects typically follows the standard nonretarded $d^{-6}$ law. Here, we reveal an anomalous $d^{-10}$ scaling law between nanostructures with strong geometric or…

Mesoscale and Nanoscale Physics · Physics 2025-07-01 Hui Pan , Yuhua Ren , Jian-Sheng Wang

Repulsive short-range and attractive long-range van der Waals (vdW) forces have an appreciable role in the behavior of extended molecular systems. When using empirical force fields - the most popular computational methods applied to such…

Chemical Physics · Physics 2023-09-27 Almaz Khabibrakhmanov , Dmitry V. Fedorov , Alexandre Tkatchenko

The atomic dipole polarizability, $\alpha$, and the van der Waals (vdW) radius, $R_{\rm vdW}$, are two key quantities to describe vdW interactions between atoms in molecules and materials. Until now, they have been determined independently…

Chemical Physics · Physics 2018-11-07 Dmitry V. Fedorov , Mainak Sadhukhan , Martin Stöhr , Alexandre Tkatchenko

Two-dimensional van der Waals (vdW) crystals can sustain various types of polaritons with strong electromagnetic confinements, making them highly attractive for the nanoscale photonic and optoelectronic applications. While extensive…

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…

Materials Science · Physics 2009-11-11 A. I. Volokitin , B. N. J. Persson

One-dimensional (1D) van der Waals heterostructures based on carbon nanotube templates are raising a lot of excitement due to the possibility of creating new optical and electronic properties, by either confining molecules inside their…

Materials Science · Physics 2021-07-22 Sofie Cambré , Ming Liu , Dmitry Levshov , Keigo Otsuka , Shigeo Maruyama , Rong Xiang
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