نتایج جستجو برای: dipole

تعداد نتایج: 23536  

Journal: :International Journal of Circuit Theory and Applications 2019

Journal: :Physical review 2023

In this paper we propose recurrence relations for the dipole densities in QCD, which allows us to find these from solution BFKL equation. We resolve diffusion approximation kernel. Based on solution, found sum of large Pomeron loops. This generates scattering amplitude that decreases at values rapidity $Y$. It turns out such behaviour amplitudes is an artifact approximation. leads unitarization...

2013
Matthias Rosenkranz Yongyong Cai Weizhu Bao

We propose a two-dimensional model for a multilayer stack of dipolar Bose-Einstein condensates formed by a strong optical lattice. We derive effective intraand interlayer dipole-dipole interaction potentials and provide simple analytical approximations for a given number of lattice sites at arbitrary polarization. We find that the interlayer dipole-dipole interaction changes the transverse aspe...

2006
V. Hannstein

A simplified scheme for the investigation of cooperative effects in the quantum jump statistics of small numbers of fluorescing atoms and ions in a trap is presented. It allows the analytic treatment of three dipole-dipole interacting four-level systems which model the relevant level scheme of Ba ions. For the latter, a huge rate of double and triple jumps was reported in a former experiment an...

A. Poorazizi B. Khalili Hadad F. Falahian F. Mollaamin M. Monajjemi M. Movehdi R.A. khavari- Nejad S. Saki

phospholipids are important for the biological lipid and are commonly used in biophysical studies.A quantumcalculation for two phospholipids Dipalmitoylphosphatidylethanolamine and dipalmitoylphosphatidic acidwere performed using the abinitio software. Geometry optimization structures were obtained at RHF level using3-21G, 6-31G*. These basis sets were used To understanding the effects of envir...

In this article, the optical properties of silver cubic-shape nanostructures (SCNs) were analyzed by employing the discrete dipole approximation (DDA) in aqueous media. The absorption, dispersion and extinction cross-sections of these nanostructures were calculated based on the wavelength change of the incident light in the visible and near infrared region. Moreover, the height change, waveleng...

Journal: :Physical review letters 2005
Marcel Mudrich Nassim Zahzam Thibault Vogt Daniel Comparat Pierre Pillet

Coupling by the resonant dipole-dipole energy transfer between cold cesium Rydberg atoms is investigated using time-resolved narrow-band deexcitation spectroscopy. This technique combines the advantage of efficient Rydberg excitation with high-resolution spectroscopy at variable interaction times. Dipole-dipole interaction is observed spectroscopically as avoided level crossing. The coherent ch...

رجبی , علی اکبر, شجاعی , محمدرضا,

  In this article nucleons are discussed based on constituent quark model. This model aims at studying the forces among three particles and the corresponding standard two-body potential contribution. The quark potential contains a hypercentral interaction. The confining potential is composed of four components,color charge, the oscillatory potential, the interaction quark and neutral gluon, and...

2007
Takeshi Koide Junichi Hori

Horizontal and sagittal dipole layer distributions were estimated from scalp electroencephalogram for three dimensional dipole imaging of brain electrical activity. Horizontal dipole layer being parallel to the brain surface has been used in previous head models. In the present study, the dipole layer distribution in the sagittal plane was also introduced to identify the position of dipole sour...

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