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Rotating Binary Bose-Einstein Condensates and Vortex Clusters in Quantum Droplets

Nilsson Tengstrand, M. LU ; Stürmer, P. ; Karabulut, E. LU and Reimann, S. M. LU (2019) In Physical Review Letters 123(16).
Abstract

Quantum droplets may form out of a gaseous Bose-Einstein condensate, stabilized by quantum fluctuations beyond mean field. Determining the ground state of a rotating binary condensate, we show that multiple singly quantized vortices may form in these droplets at moderate angular momenta in two dimensions. Droplets carrying these precursors of an Abrikosov lattice remain self-bound for certain timescales after switching off an initial harmonic confinement. Intriguingly, we find evidence of a metastable persistent current in these new types of binary condensates. We discuss how this finding can be used to experimentally generate vortex-carrying quantum droplets.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
123
issue
16
article number
160405
publisher
American Physical Society
external identifiers
  • scopus:85073826766
  • pmid:31702331
ISSN
0031-9007
DOI
10.1103/PhysRevLett.123.160405
language
English
LU publication?
yes
id
86447f9a-6ce1-49a2-a6c9-3af1d8303150
date added to LUP
2019-11-04 13:31:19
date last changed
2020-08-09 06:59:55
@article{86447f9a-6ce1-49a2-a6c9-3af1d8303150,
  abstract     = {<p>Quantum droplets may form out of a gaseous Bose-Einstein condensate, stabilized by quantum fluctuations beyond mean field. Determining the ground state of a rotating binary condensate, we show that multiple singly quantized vortices may form in these droplets at moderate angular momenta in two dimensions. Droplets carrying these precursors of an Abrikosov lattice remain self-bound for certain timescales after switching off an initial harmonic confinement. Intriguingly, we find evidence of a metastable persistent current in these new types of binary condensates. We discuss how this finding can be used to experimentally generate vortex-carrying quantum droplets.</p>},
  author       = {Nilsson Tengstrand, M. and Stürmer, P. and Karabulut, E. and Reimann, S. M.},
  issn         = {0031-9007},
  language     = {eng},
  number       = {16},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Rotating Binary Bose-Einstein Condensates and Vortex Clusters in Quantum Droplets},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.123.160405},
  doi          = {10.1103/PhysRevLett.123.160405},
  volume       = {123},
  year         = {2019},
}