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

W. Vincent Liu, Frank Wilczek, Peter Zoller

Research output: Contribution to journalArticlepeer-review

91 Scopus citations


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 languageEnglish (US)
Article number033603
Pages (from-to)033603-1-033603-9
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - Sep 2004
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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