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Energy gaps and interaction blockade in confined quantum systems

Capelle, Klaus; Borgh, Magnus LU ; Kärkkäinen, Kimmo LU and Reimann, Stephanie LU (2007) In Physical Review Letters 99(1). p.010402-010406
Abstract
We investigate universal properties of strongly confined particles that turn out to be dramatically different from what is observed for electrons in atoms and molecules. For a large class of harmonically confined systems, such as small quantum dots and optically trapped atoms, many-body particle addition and removal energies, and energy gaps, are accurately obtained from single-particle eigenvalues. Transport blockade phenomena are related to the derivative discontinuity of the exchange-correlation functional. This implies that they occur very generally, with Coulomb blockade being a particular realization of a more general phenomenon. In particular, we predict a van der Waals blockade in cold atom gases in traps.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
99
issue
1
pages
010402 - 010406
publisher
American Physical Society
external identifiers
  • wos:000247819900002
  • scopus:34547347395
ISSN
1079-7114
DOI
10.1103/PhysRevLett.99.010402
language
English
LU publication?
yes
id
e0a1cb9d-e91d-4797-85ed-723e2ddcf52c (old id 648278)
date added to LUP
2007-12-11 16:41:16
date last changed
2017-08-13 03:44:16
@article{e0a1cb9d-e91d-4797-85ed-723e2ddcf52c,
  abstract     = {We investigate universal properties of strongly confined particles that turn out to be dramatically different from what is observed for electrons in atoms and molecules. For a large class of harmonically confined systems, such as small quantum dots and optically trapped atoms, many-body particle addition and removal energies, and energy gaps, are accurately obtained from single-particle eigenvalues. Transport blockade phenomena are related to the derivative discontinuity of the exchange-correlation functional. This implies that they occur very generally, with Coulomb blockade being a particular realization of a more general phenomenon. In particular, we predict a van der Waals blockade in cold atom gases in traps.},
  author       = {Capelle, Klaus and Borgh, Magnus and Kärkkäinen, Kimmo and Reimann, Stephanie},
  issn         = {1079-7114},
  language     = {eng},
  number       = {1},
  pages        = {010402--010406},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Energy gaps and interaction blockade in confined quantum systems},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.99.010402},
  volume       = {99},
  year         = {2007},
}