Dimensional crossover in a spin-imbalanced Fermi gas
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Publication Date
2016Journal Title
PHYSICAL REVIEW A
ISSN
2469-9926
Publisher
American Physical Society (APS)
Volume
94
Issue
6
Number
ARTN 063627
Type
Article
This Version
VoR
Metadata
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Dutta, S., & Mueller, E. J. (2016). Dimensional crossover in a spin-imbalanced Fermi gas. PHYSICAL REVIEW A, 94 (6. ARTN 063627) https://doi.org/10.1103/PhysRevA.94.063627
Abstract
We model the one-dimension (1D) to three-dimension (3D) crossover in a
cylindrically trapped Fermi gas with attractive interactions and
spin-imbalance. We calculate the mean-field phase diagram, and study the
relative stability of exotic superfluid phases as a function of interaction
strength and temperature. For weak interactions and low density, we find
1D-like behavior, which repeats as a function of the chemical potential as new
channels open. For strong interactions, mixing of single-particle levels gives
3D-like behavior at all densities. Furthermore, we map the system to an
effective 1D model, finding significant density dependence of the effective 1D
scattering length.
Sponsorship
National Science Foundation Grant No. PHY-1508300
Identifiers
External DOI: https://doi.org/10.1103/PhysRevA.94.063627
This record's URL: https://www.repository.cam.ac.uk/handle/1810/299192
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