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Quantum phases of a Feshbach-resonant atomic Bose gas in one dimension
- Source :
- Physical Review A. 73
- Publication Year :
- 2006
- Publisher :
- American Physical Society (APS), 2006.
-
Abstract
- We study an atomic Bose gas with an s-wave Feshbach resonance in a one-dimensional optical lattice, with the densities of atoms and molecules incommensurate with the lattice. At zero temperature, 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 commensurate with the lattice, two additional phases may exist: the two component Luttinger liquid where both the atomic and molecular sectors are gapless, and the inter-channel charge density wave where the relative density fluctuations between atoms and molecules are frozen at low energy.<br />Comment: 4+epsilon pages, 3 figures; references added
- Subjects :
- Condensed Matter::Quantum Gases
Physics
Statistical Mechanics (cond-mat.stat-mech)
Bose gas
Condensed matter physics
Condensed Matter - Superconductivity
Atoms in molecules
FOS: Physical sciences
Charge density
Quantum phases
Atomic and Molecular Physics, and Optics
law.invention
Superconductivity (cond-mat.supr-con)
Luttinger liquid
law
Physics::Atomic and Molecular Clusters
Physics::Atomic Physics
Feshbach resonance
Charge density wave
Condensed Matter - Statistical Mechanics
Bose–Einstein condensate
Subjects
Details
- ISSN :
- 10941622 and 10502947
- Volume :
- 73
- Database :
- OpenAIRE
- Journal :
- Physical Review A
- Accession number :
- edsair.doi.dedup.....f0ab85a241ef8c2cb9b7bf1e511a6f3a