Spin-dependent hubbard model and a quantum phase transition in cold atoms

W. Vincent Liu; Frank Wilczek; Peter Zoller

doi:10.1103/PhysRevA.70.033603

Spin-dependent hubbard model and a quantum phase transition in cold atoms

W. Vincent Liu, Frank Wilczek, Peter Zoller

Research output: Contribution to journal › Article › peer-review

91 Scopus citations

Abstract

The protocol for spin-dependent lattice structure in a cold atomic fermi gas using lasers was investigated. The protocol was also used to realize the Hubbard model whose hopping parameters depend on spin and whose interaction strength could be controlled with an external magnetic field. It was observed that the class of states supports coexisting superfluid and normal components even at zero temperature. The results show that the quantity of the normal component varied with external parameters.

Original language	English (US)
Article number	033603
Pages (from-to)	033603-1-033603-9
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	70
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.70.033603
State	Published - Sep 2004
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.70.033603

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abstract = "The protocol for spin-dependent lattice structure in a cold atomic fermi gas using lasers was investigated. The protocol was also used to realize the Hubbard model whose hopping parameters depend on spin and whose interaction strength could be controlled with an external magnetic field. It was observed that the class of states supports coexisting superfluid and normal components even at zero temperature. The results show that the quantity of the normal component varied with external parameters.",

author = "Liu, {W. Vincent} and Frank Wilczek and Peter Zoller",

note = "Funding Information: We have benefited from discussions with E. Gubankova, S. Sachdev, T. Senthil, X.-G. Wen, and especially Michael Forbes. This work is supported in part by funds provided by the U.S. Department of Energy (DOE) under Cooperative Research Agreement No. DF-FC02-94ER40818. Work at the University of Innsbruck is supported by the Austrian Science Foundation and EU networks.",

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AU - Wilczek, Frank

AU - Zoller, Peter

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PY - 2004/9

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N2 - The protocol for spin-dependent lattice structure in a cold atomic fermi gas using lasers was investigated. The protocol was also used to realize the Hubbard model whose hopping parameters depend on spin and whose interaction strength could be controlled with an external magnetic field. It was observed that the class of states supports coexisting superfluid and normal components even at zero temperature. The results show that the quantity of the normal component varied with external parameters.

AB - The protocol for spin-dependent lattice structure in a cold atomic fermi gas using lasers was investigated. The protocol was also used to realize the Hubbard model whose hopping parameters depend on spin and whose interaction strength could be controlled with an external magnetic field. It was observed that the class of states supports coexisting superfluid and normal components even at zero temperature. The results show that the quantity of the normal component varied with external parameters.

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Spin-dependent hubbard model and a quantum phase transition in cold atoms

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