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Vortices in small Bose or Fermi systems with repulsive interactions

Cremon, Jonas LU ; Borgh, Magnus LU ; Koskinen, M.; Kavoulakis, G.; Manninen, M. and Reimann, Stephanie LU (2008) 20th European Conference on Few-Body Problems in Physics In Few-Body Systems 43(1-4). p.161-166
Abstract
For rotating Bose-Einstein condensates, the occurrence of vortices has been much discussed in the Gross-Pitaevskii approach. Here, we study vortex formation in finite systems with few particles for weak and repulsive two-body interactions, by numerical diagonalization. Vortex formation is surprisingly similar for both (spinless) bosonic and fermionic particles. Breaking the rotational invariance of the Hamiltonian of the system reveals the vortex patterns. A transformation from a many-fermion to a many-boson state is proposed.
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Few-Body Systems
volume
43
issue
1-4
pages
161 - 166
publisher
Springer
conference name
20th European Conference on Few-Body Problems in Physics
external identifiers
  • wos:000261951900026
  • scopus:57849136411
ISSN
0177-7963
DOI
10.1007/s00601-008-0226-6
language
English
LU publication?
yes
id
9f70f00d-9d28-4f99-b8aa-22985bef016c (old id 1377090)
date added to LUP
2009-04-22 10:41:49
date last changed
2017-01-01 05:57:19
@inproceedings{9f70f00d-9d28-4f99-b8aa-22985bef016c,
  abstract     = {For rotating Bose-Einstein condensates, the occurrence of vortices has been much discussed in the Gross-Pitaevskii approach. Here, we study vortex formation in finite systems with few particles for weak and repulsive two-body interactions, by numerical diagonalization. Vortex formation is surprisingly similar for both (spinless) bosonic and fermionic particles. Breaking the rotational invariance of the Hamiltonian of the system reveals the vortex patterns. A transformation from a many-fermion to a many-boson state is proposed.},
  author       = {Cremon, Jonas and Borgh, Magnus and Koskinen, M. and Kavoulakis, G. and Manninen, M. and Reimann, Stephanie},
  booktitle    = {Few-Body Systems},
  issn         = {0177-7963},
  language     = {eng},
  number       = {1-4},
  pages        = {161--166},
  publisher    = {Springer},
  title        = {Vortices in small Bose or Fermi systems with repulsive interactions},
  url          = {http://dx.doi.org/10.1007/s00601-008-0226-6},
  volume       = {43},
  year         = {2008},
}