Spontaneous increase of magnetic flux and chiral-current reversal in bosonic ladders: swimming against the tide

Greschner, S., Piraud, M., Heidrich-Meisner, F., McCulloch, I. P., Schollwock, U. and Vekua, T. (2015) Spontaneous increase of magnetic flux and chiral-current reversal in bosonic ladders: swimming against the tide. Physical Review Letters, 115 19: 1-5. doi:10.1103/PhysRevLett.115.190402

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ373973_OA.pdf Full text (open access) application/pdf 374.98KB 0

Author Greschner, S.
Piraud, M.
Heidrich-Meisner, F.
McCulloch, I. P.
Schollwock, U.
Vekua, T.
Title Spontaneous increase of magnetic flux and chiral-current reversal in bosonic ladders: swimming against the tide
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 1079-7114
0031-9007
Publication date 2015-11-06
Year available 2015
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.115.190402
Open Access Status File (Publisher version)
Volume 115
Issue 19
Start page 1
End page 5
Total pages 5
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2016
Language eng
Abstract The interplay between spontaneous symmetry breaking in many-body systems, the wavelike nature of quantum particles and lattice effects produces an extraordinary behavior of the chiral current of bosonic particles in the presence of a uniform magnetic flux defined on a two-leg ladder. While noninteracting as well as strongly interacting particles, stirred by the magnetic field, circulate along the system’s boundary in the counterclockwise direction in the ground state, interactions stabilize vortex lattices. These states break translational symmetry, which can lead to a reversal of the circulation direction. Our predictions could readily be accessed in quantum gas experiments with existing setups or in arrays of Josephson junctions.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2016 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 4 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 24 Nov 2015, 00:29:06 EST by System User on behalf of Engineered Quantum Systems