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Obtaining ultracold samples of dipolar molecules is a current challenge which requires an accurate knowledge of their electronic properties to guide the ongoing experiments. Alkali hydride molecules have permanent dipole significantly…

原子物理 · 物理学 2009-01-09 Mireille Aymar , Johannes Deiglmayr , Olivier Dulieu

Bound state properties of few single and double-$\Lambda$ hypernuclei is critically examined in the framework of core-$\Lambda$ and core+$\Lambda+\Lambda$ few-body model applying hyperspherical harmonics expansion method (HHEM). The…

核理论 · 物理学 2015-09-24 Md. Abdul Khan

A theoretical scheme for the analysis of experimental data on IR spectroscopy for a quantum particle in a double well potential (DWP) is suggested. The analysis is based on the trigonometric DWP for which the exact analytic solution of the…

化学物理 · 物理学 2019-06-06 A. E. Sitnitsky

For a given many-electron molecule, it is possible to define a corresponding one-electron Schr\"odinger equation, using potentials derived from simple atomic densities, whose solution predicts fairly accurate molecular orbitals for single-…

化学物理 · 物理学 2022-05-16 Fariba Nazari , Jerry L. Whitten

Superconductivity in sulfur superhydride H$_{3}$S under extreme pressures has been explained theoretically, but it requires a peaked concentration of the electronic density of states (DOS), which has been found in first-principles…

超导电性 · 物理学 2026-03-30 Ryosuke Akashi

We calculate the spatial entanglement between two electrons trapped in a nanostructure for a broad class of confinement potentials, including single and double quantum dots, and core-shell quantum dot structures. By using a parametrized…

量子物理 · 物理学 2015-05-13 S. Abdullah , J. P. Coe , I. D'Amico

We apply quantum electrodynamical density functional theory to obtain the electronic density, the spin polarization, as well as the orbital and the spin magnetization of square periodic arrays of quantum dots or antidots subjected to the…

介观与纳米尺度物理 · 物理学 2023-06-13 Vram Mughnetsyan , Vidar Gudmundsson , Nzar Rauf Abdullah , Chi-Shung Tang , Valeriu Moldoveanu , Andrei Manolescu

We show that the exact solution of the Schr\"odinger equation for two electrons confined to two distinct concentric rings or spheres can be found in closed form for particular sets of the ring or sphere radii. In the case of two concentric…

化学物理 · 物理学 2015-06-12 Pierre-François Loos , Peter M. W. Gill

In this work we solve thermo-hydrodynamical equations considering a two dimensional electron system in the integer quantum Hall regime, to calculate the spatial distribution of the local electron temperature. We start from the…

介观与纳米尺度物理 · 物理学 2012-03-14 N. Boz Yurdaşan , K. Akgüngör , A. Siddiki , İ. Sökmen

General analytic expressions for the total absorption coefficient of strong electromagnetic waves caused by confined electrons in Infinite semi-parabolic plus Semi-inverse Squared Quantum Wells (ISPSISQW) are obtained by using the quantum…

介观与纳米尺度物理 · 物理学 2024-12-25 Cao Thi Vi Ba , Nguyen Quang Bau , Anh-Tuan Tran , Tang Thi Dien

Inelastic scattering of electrons incident on a solid surface is determined by the two properties: (i) electronic response of the target system and (ii) the detailed quantum-mechanical motion of the projectile electron inside and in the…

材料科学 · 物理学 2016-01-06 V. U. Nazarov , V. M. Silkin , E. E. Krasovskii

This article presents and discusses the general features and aspects regarding the electromagnetic scattering by a small core-shell plasmonic sphere. First, the thickness effects on the plasmonic resonances are presented in the…

经典物理 · 物理学 2018-02-14 Dimitrios C. Tzarouchis , Ari Sihvola

Using far-infrared spectroscopy, we investigate the excitations of self-organized InAs quantum dots as a function of the electron number per dot, 1<n<6, which is monitored in situ by capacitance spectroscopy. Whereas the well-known two-mode…

凝聚态物理 · 物理学 2009-10-28 M. Fricke , A. Lorke , J. P. Kotthaus , G. Medeiros-Ribeiro , P. M. Petroff

We present calculations for electronic and magnetic properties of surface states confined by a circular quantum corral built of magnetic adatoms (Fe) on a Cu(111) surface. We show the oscillations of charge and magnetization densities…

材料科学 · 物理学 2009-11-10 B. Lazarovits , B. Ujfalussy , L. Szunyogh , B. L. Gyorffy , P. Weinberger

We report the first electronic structure calculation performed on a quantum computer without exponentially costly precompilation. We use a programmable array of superconducting qubits to compute the energy surface of molecular hydrogen…

The time independent Schoedinger equation for two electrons confined in a parabolic external potential is solved. Developing this solution in terms of a dimensionless variable it is demonstrated that parameterization of the strength of the…

强关联电子 · 物理学 2010-09-30 Preston Jones

Aspects of of plane wave electromagnetic scattering by a radially inhomogeneous sphere is discussed. The vector problem is reduced to two scalar radial `Schr\"odinger-like' equations, and a connection with time-independent potential…

经典物理 · 物理学 2013-07-08 John A. Adam , Umaporn Nuntaplook

We present a general multi-component density functional theory in which electrons and nuclei are treated completely quantum mechanically, without the use of a Born-Oppenheimer approximation. The two fundamental quantities in terms of which…

材料科学 · 物理学 2007-05-23 Thomas Kreibich , Robert van Leeuwen , E. K. U. Gross

We study leading-order many-body effects of longitudinal optical (LO) phonons on electronic properties of one-dimensional quantum wire systems. We calculate the quasiparticle properties of a weakly polar one dimensional electron gas in the…

凝聚态物理 · 物理学 2009-10-28 E. H. Hwang , Ben Yu-Kuang Hu , S. Das Sarma

Current effective medium theories for nano-shells are reviewed. A new method for calculating the effective dielectric function of a core-shell nanoparticle is presented and compared with existing theories showing clear advantages in most…