Quantum phases of a Feshbach-resonant atomic Bose gas in one dimension

Yu Wen Lee, Yu Li Lee

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Abstract

We study an atomic Bose gas with an s -wave Feshbach resonance in one dimension. Most of the parameter region is occupied by a phase in which the superfluid fluctuations of atoms and molecules are the predominant ones, due to the phase fluctuations of atoms and molecules being locked by a Josephson coupling between them. When the density difference between atoms and molecules is close to zero, two additional phases may exist: the two-component Luttinger liquid, which contains two branches of gapless excitations, and the interchannel charge density wave where the relative density fluctuations between atoms and molecules are frozen at low energy.

Original languageEnglish
Article number043606
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume73
Issue number4
DOIs
Publication statusPublished - 2006 Apr 21

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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