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Vortex rings in two-dimensional harmonic traps

Manninen, M. ; Koskinen, M. ; Yu, Yongle and Reimann, Stephanie LU (2006) In Physica Scripta T125. p.31-36
Abstract
We use the configuration interaction technique to study vortex formation in rotating systems of interacting spinless fermions and bosons trapped in a two-dimensional harmonic potential. In the fermionic case, the vortices appear as holes in the Fermi sea and localize in rings. The yrast spectrum is dominated by rigid rotation of the vortex ring, showing periodic oscillations. The Bose system shows a similar yrast spectrum and vortex formation. This can be explained by a one-to-one correspondence of the fermion and boson many-particle configurations. A simple mean-field model can reproduce the oscillations in the yrast spectrum, but fails to explain the localization of vortices.
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physica Scripta
volume
T125
pages
31 - 36
publisher
IOP Publishing
external identifiers
  • wos:000238911500009
  • scopus:42149193670
ISSN
0031-8949
DOI
10.1088/0031-8949/2006/T125/007
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
f9f78fd3-213a-44b2-bd9e-20d5db4a3704 (old id 403698)
date added to LUP
2016-04-01 12:12:17
date last changed
2021-06-23 05:13:42
@article{f9f78fd3-213a-44b2-bd9e-20d5db4a3704,
  abstract     = {We use the configuration interaction technique to study vortex formation in rotating systems of interacting spinless fermions and bosons trapped in a two-dimensional harmonic potential. In the fermionic case, the vortices appear as holes in the Fermi sea and localize in rings. The yrast spectrum is dominated by rigid rotation of the vortex ring, showing periodic oscillations. The Bose system shows a similar yrast spectrum and vortex formation. This can be explained by a one-to-one correspondence of the fermion and boson many-particle configurations. A simple mean-field model can reproduce the oscillations in the yrast spectrum, but fails to explain the localization of vortices.},
  author       = {Manninen, M. and Koskinen, M. and Yu, Yongle and Reimann, Stephanie},
  issn         = {0031-8949},
  language     = {eng},
  pages        = {31--36},
  publisher    = {IOP Publishing},
  series       = {Physica Scripta},
  title        = {Vortex rings in two-dimensional harmonic traps},
  url          = {http://dx.doi.org/10.1088/0031-8949/2006/T125/007},
  doi          = {10.1088/0031-8949/2006/T125/007},
  volume       = {T125},
  year         = {2006},
}