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The electric and magnetic fields are investigated on the basis of quantum vacuum. The analysis of the electromagnetic energy and force indicates that an electric field is a polarized distribution of the vacuum virtual dipoles, and that a…

General Physics · Physics 2009-08-22 Xing-Hao Ye

The quantum size oscillations of the energetic properties and the elongation force of the gold slabs and wires, isolated and in a contact with electrodes, are calculated in a free-electron model. A simple relation between the Fermi energy…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 V. V. Pogosov , V. P. Kurbatsky , D. P. Kotlyarov , A. Kiejna

The electric-field noise above a layered structure composed of a planar metal electrode covered by a thin dielectric is evaluated and it is found that the dielectric film considerably increases the noise level, in proportion to its…

Materials Science · Physics 2021-08-06 Muir Kumph , Carsten Henkel , Peter Rabl , Michael Brownnutt , Rainer Blatt

A nanocomposite film containing highly polarizable inclusions in a fluid background is explored when an external electric field is applied perpendicular to the planar film. For small electric fields, the induced dipole moments of the…

Soft Condensed Matter · Physics 2025-06-27 Elshad Allahyarov , Hartmut Löwen

We have investigated the diffusion and structure of TIP4P/2005 water confined in carbon nanotubes subjected to external electric fields. A wide range of diameters has been used to show a highly size-dependent behavior of the water…

The effect of electric field, applied on systems in the nanoscale regime has attracted a lot of research in recent times. We highlight some of the recent results in the field of single molecule electronics and then move on to focus on some…

Materials Science · Physics 2008-10-11 S. Lakshmi , Sudipta Dutta , Swapan K. Pati

A nanodevice consisting of a conductive cylinder in an axial magnetic field with one-dimensional wires attached to its lateral surface is considered. An explicit form for transmission and reflection coefficients of the system as a function…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 V. A. Margulis , M. A. Pyataev

The energy spectrum of an electron confined to an arbitrary surface of revolution in an external magnetic field, parallel to the symmetry axis, is studied analitycally and numerically. The problem is reduced via conformal mapping to one on…

Mesoscale and Nanoscale Physics · Physics 2009-09-25 P. Malits , A. Kaplunovsky , I. D. Vagner , P. Wyder

The a.c. electric field distribution is studied in a composite, containing materials with small local losses. The possibility that 2D two-component system can have effective absorption in the absence of local absorption was evidented. We…

Disordered Systems and Neural Networks · Physics 2015-06-25 E. M. Baskin , M. V. Entin , A. K. Sarychev , A. A. Snarskii

An appropriate Lagrangian is considered for a system comprising a moving nanoparticle in a semi-infinite space, and the electromagnetic and matter fields are quantized. Through an analysis of the absorbed power radiation, it is demonstrated…

Quantum Physics · Physics 2024-02-27 Vahid Ameri , Alidad Askari , Morteza Rafiee , Mohammad Eghbali-Arani

How carbon nanotubes behave in an external electric field? What will be the relation between the intensity of the electric field and the tube's deformation? What are the geometry effects on the response of carbon nanotubes to electric…

Mesoscale and Nanoscale Physics · Physics 2018-10-26 Z. Wang , M. Devel , R. Langlet , B. Dulmet

The processes of storage and dissipation of electromagnetic energy in nanostructures depend on both the material properties and the geometry. In this paper, the distributions of local energy density and power dissipation in nanogratings are…

Optics · Physics 2014-11-10 J. M. Zhao , Z. M. Zhang

We revisit the electromagnetic heat transfer between a metallic nanoparticle and a metallic semi-infinite substrate, commonly studied using the electric dipole approximation. For infrared and microwave frequencies, we find that the magnetic…

Other Condensed Matter · Physics 2008-06-10 Pierre-Olivier Chapuis , Marine Laroche , Sebastian Volz , Jean-Jacques Greffet

In this paper, we consider very high concentration of electric field in between infinitely many circular perfect conductors arranged closely in two rows. In stiff fiber-reinforced composite, shear stress concentrations occur in between…

Analysis of PDEs · Mathematics 2017-04-18 KiHyun Yun

Electronic states in nanographite ribbons with zigzag edges are studied using the extended Hubbard model with nearest neighbor Coulomb interactions. The nearest Coulomb interactions stabilize electronic states with the opposite electric…

Materials Science · Physics 2009-09-29 Kikuo Harigaya

The retarded Green function of the electromagnetic field in spacetime of a straight thin cosmic string is found. It splits into a geodesic part (corresponding to the propagation along null rays) and to the field scattered on the string.…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Pavel Krtous

The coherence length of the thermal electromagnetic field near a planar surface has a minimum value related to the nonlocal dielectric response of the material. We perform two model calculations of the electric energy density and the…

Optics · Physics 2009-10-17 Carsten Henkel , Karl Joulain

In clouds of suspended particles (grains, droplets, spheres, crystals, etc.), collisions electrify the particles and the clouds, producing large electric potential differences over large scales. This is seen most spectacularly in the…

Soft Condensed Matter · Physics 2017-07-28 Freja Nordsiek , Daniel P. Lathrop

In this work, we compare the effects of electromagnetic (EM) fields on strong coupling systems in two formalisms: in-out and in-in, which are different from each other when a finite electric field is present. The chiral effective…

Nuclear Theory · Physics 2020-06-24 Gaoqing Cao

An expression for the electromagnetic field energy density in a dispersive, lossy, left-handed metamaterial, consisting of an array of split-ring resonators and an array of wires is derived. An electromagnetic field with general…

Classical Physics · Physics 2007-05-23 A. D. Boardman , K. Marinov