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We calculate the van der Waals dispersive interaction between a neutral but polarizable atom and a perfectly conducting isolated sphere in the nonretarded case. We make use of two separate models, one being the semiclassical…

Quantum Physics · Physics 2009-03-13 M. M. Taddei , T. N. C. Mendes , C. Farina

A simple theory is proposed for the dispersive molecular binding of unusually high magnitude due to an enhanced polarizability. Two alternative ways have so far been considered in the literature leading to the polarizability enhancement:…

Soft Condensed Matter · Physics 2007-05-23 Mladen Georgiev , Alexander Gochev , Jai Singh

We calculate the van der Waals friction between two semi-infinite solids in normal relative motion and find a drastic difference in comparison with the parallel relative motion. The case of the good conductors is investigated in details…

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

We report on calculations of the elastic cross section and thermalization rate for collision between two maximally spin-polarized chromium atoms in the cold and ultracold regimes, relevant to buffer-gas and magneto-optical cooling of…

Atomic Physics · Physics 2009-11-10 Zoran Pavlovic , Björn O. Roos , Robin Côté , H. R. Sadeghpour

Filamentary objects such as nano-wires, nanotubes and DNA are of current interest in physics, nanoscience, chemistry, biology and medicine. They can interact via strong, exceptionally long-ranged many-object van der Waals (vdW, dispersion)…

Materials Science · Physics 2026-02-24 Subhojit Pal , John F. Dobson , Mathias Boström

We demonstrate long-range superconducting correlations in a several micrometer-long carbon nanotube encapsulated in a van der Waals stack between hBN and NbSe$_2$. We show that a substantial supercurrent flows through the nanotube section…

We derive solutions of the Schr\"{o}dinger equation for the isotropic van der Waals interaction in a symmetric harmonic trap, with the recent approach [arXiv:2207.09377 (2022)] to handle the multi-scale long-range potential. Asymptotic…

Atomic Physics · Physics 2024-11-11 Ruijie Du

The interaction and tunneling conductance between oppositely located ends of coaxial carbon nanotubes are studied by the example of two (11,11) nanotubes with open ends terminated by hydrogen atoms. The Green function formalism is applied…

Mesoscale and Nanoscale Physics · Physics 2014-06-16 A. M. Popov , I. V. Lebedeva , A. A. Knizhnik , Yu. E. Lozovik , N. A. Poklonski , A. I. Siahlo , S. A. Vyrko , S. V. Ratkevich

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…

Materials Science · Physics 2022-03-23 Paul Hauseux , Alberto Ambrosetti , Stéphane P. A. Bordas , Alexandre Tkatchenko

The electrical conductivity in dense plasmas can be calculated with the relaxation-time approximation provided that the interaction potential between the scattering electron and the ion is known. To date there has been considerable…

Plasma Physics · Physics 2017-10-25 C. E. Starrett

We consider a one-dimensional electron system, suitable for the description of the electronic correlations in a metallic carbon nanotube. Renormalization group methods are used to study the low-energy behavior of the unscreened Coulomb…

Strongly Correlated Electrons · Physics 2009-10-31 S. Bellucci , J. Gonzalez

The origin of a chemical reaction between two reactant atoms is associated to the activation energy, with the assumption that, high-energy collisions between these atoms, are the ones that overcome the activation energy. Here, we (i) show…

General Physics · Physics 2014-05-20 Andrew Das Arulsamy

We investigate a one-dimensional model that shows several properties of water. The model combines the long-range attraction of the van der Waals model with the nearest-neighbor interaction potential by Ben-Naim, which is a step potential…

Statistical Mechanics · Physics 2012-09-28 Lotta Heckmann , Barbara Drossel

In this paper we calculate the elastic scattering cross sections of slow electron by carbon nanotubes. The corresponding electron-nanotube interaction is substituted by a zero-thickness cylindrical potential that neglects the atomic…

Mesoscale and Nanoscale Physics · Physics 2022-02-23 M. Ya. Amusia , A. S. Baltenkov

Single-walled carbon nanotubes are strongly correlated systems with large Coulomb repulsion between two electrons occupying the same $p_z$ orbital. Within a molecular Hamiltonian appropriate for correlated $\pi$-electron systems, we show…

Materials Science · Physics 2009-02-15 Zhendong Wang , Demetra Psiachos , Roberto F. Badilla , Sumit Mazumdar

A simple kinetic model, which is presumably minimum, for the phase transition of the van der Waals fluid is presented. In the model, intermolecular collisions for a dense gas has not been treated faithfully. Instead, the expected…

Fluid Dynamics · Physics 2018-06-05 Shigeru Takata , Takashi Noguchi

The Casimir and van der Waals forces acting between two metallic plates or a sphere (lens) above a plate are calculated accounting for the finite conductivity of the metals. The simple formalism of surface modes is briefly presented which…

Quantum Physics · Physics 2009-11-06 G. L. Klimchitskaya , U. Mohideen , V. M. Mostepanenko

The best level of ordering and straightening of carbon nanotube arrays is often achieved when they are grown in a dielectric matrix, so such structures present the most suitable candidates for future channeling experiments with carbon…

Atomic Physics · Physics 2009-11-13 D. Borka , D. J. Mowbray , Z. L. Mišković , S. Petrović , N. Nešković

Transport properties of disordered carbon nanotubes are investigated with including long range Coulomb interactions. The resistivity and optical conductivity are calculated by using the memory functional method. In addition, the effect of…

Strongly Correlated Electrons · Physics 2009-10-31 Hideo Yoshioka

The self-assembly mechanism of one-end-open carbon nanotubes (CNTs) suspended in an aqueous solution was studied by molecular dynamics simulations. It was shown that two one-end-open CNTs with different diameters can coaxially self-assemble…

Mesoscale and Nanoscale Physics · Physics 2017-07-31 Hang Xiao , Xiaoyang Shi , Xi Chen
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