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Mesoscopic fluctuations of the pairing gap

Åberg, Sven LU ; Uhrenholt, Henrik LU and Leboeuf, Patricio (2008) 2nd Workshop on Nuclei and Mesoscopic Physics, 2007 In AIP CONFERENCE PROCEEDINGS 995. p.173-184
Abstract
A description of mesoscopic fluctuations of the pairing gap in finite-sized quantum systems based on periodic orbit theory is presented. The size of the fluctuations are found to depend on quite general properties. We distinguish between systems where corresponding classical motion is regular or chaotic, and describe in detail fluctuations of the BCS gap as a function of the size of the system. The theory is applied to different mesoscopic systems: atomic nuclei, metallic grains, and ultracold fermionic gases. We also present a detailed description of pairing gap variation with particle number for nuclei based on a deformed cavity potential.
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
keywords
fluctuations, pairing gap, order/chaos, semiclassical methods, BCS theory
in
AIP CONFERENCE PROCEEDINGS
editor
P, Danielewicz; P, Piecuch; V, Zelevinsky; ; and
volume
995
pages
12 pages
publisher
American Institute of Physics
conference name
2nd Workshop on Nuclei and Mesoscopic Physics, 2007
external identifiers
  • wos:000255196600022
  • scopus:42549114322
ISSN
1551-7616
0094-243X
DOI
10.1063/1.2915592
language
English
LU publication?
yes
id
4b1e8dfb-5e8f-4dc7-9ffc-9fb2c37e382b (old id 1265446)
alternative location
http://arxiv.org/PS_cache/arxiv/pdf/0801/0801.3903v1.pdf
date added to LUP
2008-11-06 11:24:38
date last changed
2017-01-01 04:50:12
@inproceedings{4b1e8dfb-5e8f-4dc7-9ffc-9fb2c37e382b,
  abstract     = {A description of mesoscopic fluctuations of the pairing gap in finite-sized quantum systems based on periodic orbit theory is presented. The size of the fluctuations are found to depend on quite general properties. We distinguish between systems where corresponding classical motion is regular or chaotic, and describe in detail fluctuations of the BCS gap as a function of the size of the system. The theory is applied to different mesoscopic systems: atomic nuclei, metallic grains, and ultracold fermionic gases. We also present a detailed description of pairing gap variation with particle number for nuclei based on a deformed cavity potential.},
  author       = {Åberg, Sven and Uhrenholt, Henrik and Leboeuf, Patricio},
  booktitle    = {AIP CONFERENCE PROCEEDINGS},
  editor       = {P, Danielewicz and P, Piecuch and V, Zelevinsky},
  issn         = {1551-7616},
  keyword      = {fluctuations,pairing gap,order/chaos,semiclassical methods,BCS theory},
  language     = {eng},
  pages        = {173--184},
  publisher    = {American Institute of Physics},
  title        = {Mesoscopic fluctuations of the pairing gap},
  url          = {http://dx.doi.org/10.1063/1.2915592},
  volume       = {995},
  year         = {2008},
}