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High-field fractional quantum Hall effect in optical lattices

Abstract:
We consider interacting bosonic atoms in an optical lattice subject to a large simulated magnetic field. We develop a model similar to a bilayer fractional quantum Hall system valid near simple rational numbers of magnetic flux quanta per lattice cell. Then we calculate its ground state, magnetic lengths, fractional fillings, and find unexpected sign changes in the Hall current. Finally we study methods for detecting these novel features via shot noise and Hall current measurements.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevLett.96.180407

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Dieter Jaksch Theory Group
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Dieter Jaksch Theory Group
Role:
Author
Engineering and Physical Sciences Research Council More from this funder
EU through OLAQUI More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
96
Issue:
18
Article number:
180407
Publication date:
2006-05-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Subjects:
UUID:
uuid:0800c89a-8f52-4048-a38b-522ce8c27e72
Local pid:
ora:1786
Deposit date:
2008-03-14

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