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Inertial effects can affect several properties of physical systems. In particular, in the context of quantum mechanics, such effects have been studied in diverse contexts. In this paper, starting from the Schr\"{o}dinger equation for a…

量子物理 · 物理学 2022-09-07 Luís Fernando C. Pereira , Márcio M. Cunha , Edilberto O. Silva

In this work, we investigate the effects of rotation on the physical properties of a quantum dot described by a radial potential and subjected to a rotating reference frame. The interplay between rotation and confinement is analyzed by…

介观与纳米尺度物理 · 物理学 2025-10-28 Luís Fernando C. Pereira , Edilberto O. Silva

In this work, we use the thin-layer quantization procedure to study the physical implications due to curvature effects on a quantum dot in the presence of an external magnetic field. Among the various physical implications due to the…

介观与纳米尺度物理 · 物理学 2019-11-25 Luis Fernando C. Pereira , Fabiano M. Andrade , Cleverson Filgueiras , Edilberto O. Silva

We investigate the properties of a two-dimensional quantum ring under rotating and external magnetic field effects. We initially analyse the Landau levels and inertial effects on them. Among the results obtained, we emphasize that the…

介观与纳米尺度物理 · 物理学 2023-06-21 Luís Fernando C. Pereira , Edilberto O. Silva

The effects of surface curvature on the motion of electrons in a mesoscopic two-dimensional ring on a cone in the presence of external magnetic fields are examined. The approach follows the thin-layer quantization procedure, which gives…

介观与纳米尺度物理 · 物理学 2019-11-04 Luís Fernando C. Pereira , Fabiano M. Andrade , Cleverson Filgueiras , Edilberto O. Silva

We study a 2D mesoscopic ring with an anisotropic effective mass considering surface quantum confinement effects. Consider that the ring is defined on the surface of a cone, which can be controlled topologically and mapped to the 2D ring in…

介观与纳米尺度物理 · 物理学 2025-10-28 Francisco A. G. de Lira , Luís Fernando C. Pereira , Edilberto O. Silva

Properties of confined mesoscopic systems have been extensively studied numerically over recent years. We discuss an analytical approach to the study of finite rotating fermionic systems in two dimension. We first construct the energy…

介观与纳米尺度物理 · 物理学 2019-08-17 Sankalpa Ghosh , M. V. N. Murthy , Subhasis Sinha

We study theoretically the magnetic field effect on a neutral, but polarizable exciton confined in quantum-ring structures. For excitons with a nonzero dipole moment, a novel magnetic interference effect occurs: The ground state of an…

介观与纳米尺度物理 · 物理学 2015-06-24 A. O. Govorov , A. V. Kalameitsev , R. Warburton , K. Karrai , S. E. Ulloa

We have studied the spin structure of circular four-electron quantum rings using tunable confinement potentials. The calculations were done using the exact diagonalization method. Our results indicate that ringlike systems can have…

介观与纳米尺度物理 · 物理学 2013-06-25 G. Bårdsen , E. Tölö , A. Harju

In this paper we study the quantum dynamics of an electron/hole in a two-dimensional quantum ring within a spherical space. For this geometry, we consider a harmonic confining potential. Suggesting that the quantum ring is affected by the…

量子物理 · 物理学 2020-01-08 A. L. Silva Netto , B. Farias , J. Carvalho , C. Furtado

The separate and combined influences of the spin-orbit and electron-electron interactions on the electron magnetization in quantum rings have been studied theoretically on the basis of the spin-density-functional theory and the Kohn-Sham…

介观与纳米尺度物理 · 物理学 2013-09-23 O. S. Bauzha

This work presents a study on the nonrelativistic quantum motion of a charged particle in a rotating frame, considering the Aharonov-Bohm effect and a uniform magnetic field. We derive the equation of motion and the corresponding radial…

Quantum interference effects in rings provide suitable means for controlling spin at mesoscopic scales. Here we apply such control mechanisms to coherent spin-dependent transport in one- and two-dimensional rings subject to Rashba…

介观与纳米尺度物理 · 物理学 2009-11-10 Diego Frustaglia , Klaus Richter

Persistent currents and magnetization are considered for a two-dimensional electron (or gas of electrons) coupled to various magnetic fields. Thermodynamic formulae for the magnetization and the persistent current are established and the…

凝聚态物理 · 物理学 2009-10-31 Jean Desbois , Stephane Ouvry , Christophe Texier

We investigate currents in a quantum ring threaded by a magnetic flux which can be varied in an arbitrary way from an initial value $\phi_i$ at time $t_i$ to a final value $\phi_f$ at time $t_f$. Dynamics of electrons in the ring is…

介观与纳米尺度物理 · 物理学 2015-05-14 M. Mierzejewski , J. Dajka , J. Łuczka

Persistent and radiation-induced currents in distorted narrow quantum rings are theoretically investigated. We show that ring distorsions can be described using a geometrical potential term. We analyse the effect of this term on the current…

介观与纳米尺度物理 · 物理学 2007-05-23 Yuriy V. Pershin , Carlo Piermarocchi

The ground states of few electrons confined in two vertically coupled quantum rings in the presence of an external magnetic field are studied systematically within the current spin-density functional theory. Electron-electron interactions…

介观与纳米尺度物理 · 物理学 2009-10-05 L. K. Castelano , G. -Q. Hai , B. Partoens , F. M. Peeters

The effect of point defects on persistent currents in mesoscopic systems is studied in a simple tight-binding model. Using an analogy with the treatment of the critical quantum Ising chain with defects, conformal invariance techniques are…

统计力学 · 物理学 2009-10-31 Malte Henkel , Dragi Karevski

We study the effect of noncommutativity of space on the physics of a quantum interferometer located in a rotating disk in a gauge field background. To this end, we develop a path-integral approach which allows defining an effective action…

高能物理 - 理论 · 物理学 2010-11-19 H. R. Christiansen , F. A. Schaposnik

We investigate torsion and noninertial effects on a spin-$1/2$ quantum particle in the nonrelativistic limit of the Dirac equation. We consider the cosmic dislocation spacetime as a background and show that a rotating system of reference…

量子物理 · 物理学 2014-05-21 K. Bakke
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