Advanced

Electron correlation in metal clusters, quantum dots and quantum rings

Manninen, M. and Reimann, Stephanie LU (2009) International Conference on Strongly Coupled Coulomb Systems In Journal of Physics A: Mathematical and Theoretical 42(21). p.214019-214019
Abstract
This paper presents a few case studies of finite electron systems for which strong correlations play a dominant role. In simple metal clusters, the valence electrons determine the stability and shape of the clusters. The ionic skeleton of alkali metals is soft, and cluster geometries are often solely determined by electron correlations. In quantum dots and rings, the electrons may be confined by an external electrostatic potential formed by a gated heterostructure. In the low-density limit, the electrons may form the so-called Wigner molecules, for which the many-body quantum spectra reveal the classical vibration modes. High rotational states increase the tendency for the electrons to localize. At low angular momenta, the electrons may... (More)
This paper presents a few case studies of finite electron systems for which strong correlations play a dominant role. In simple metal clusters, the valence electrons determine the stability and shape of the clusters. The ionic skeleton of alkali metals is soft, and cluster geometries are often solely determined by electron correlations. In quantum dots and rings, the electrons may be confined by an external electrostatic potential formed by a gated heterostructure. In the low-density limit, the electrons may form the so-called Wigner molecules, for which the many-body quantum spectra reveal the classical vibration modes. High rotational states increase the tendency for the electrons to localize. At low angular momenta, the electrons may form a quantum Hall liquid with vortices. In this case, the vortices act as quasi-particles with long-range effective interactions that localize in a vortex molecule, in much analogy with the electron localization at strong rotation. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Journal of Physics A: Mathematical and Theoretical
volume
42
issue
21
pages
214019 - 214019
publisher
IOP Publishing
conference name
International Conference on Strongly Coupled Coulomb Systems
external identifiers
  • wos:000266129400020
  • scopus:67650859621
ISSN
1751-8113
DOI
10.1088/1751-8113/42/21/214019
language
English
LU publication?
yes
id
209c888a-5fd7-4f86-bdfe-9c1141409fcf (old id 1425984)
date added to LUP
2009-06-26 14:29:28
date last changed
2017-01-01 06:09:36
@inproceedings{209c888a-5fd7-4f86-bdfe-9c1141409fcf,
  abstract     = {This paper presents a few case studies of finite electron systems for which strong correlations play a dominant role. In simple metal clusters, the valence electrons determine the stability and shape of the clusters. The ionic skeleton of alkali metals is soft, and cluster geometries are often solely determined by electron correlations. In quantum dots and rings, the electrons may be confined by an external electrostatic potential formed by a gated heterostructure. In the low-density limit, the electrons may form the so-called Wigner molecules, for which the many-body quantum spectra reveal the classical vibration modes. High rotational states increase the tendency for the electrons to localize. At low angular momenta, the electrons may form a quantum Hall liquid with vortices. In this case, the vortices act as quasi-particles with long-range effective interactions that localize in a vortex molecule, in much analogy with the electron localization at strong rotation.},
  author       = {Manninen, M. and Reimann, Stephanie},
  booktitle    = {Journal of Physics A: Mathematical and Theoretical},
  issn         = {1751-8113},
  language     = {eng},
  number       = {21},
  pages        = {214019--214019},
  publisher    = {IOP Publishing},
  title        = {Electron correlation in metal clusters, quantum dots and quantum rings},
  url          = {http://dx.doi.org/10.1088/1751-8113/42/21/214019},
  volume       = {42},
  year         = {2009},
}