Attractive Fermi Gases with Unequal Spin Populations in Highly Elongated Traps
TLDR
Two-component attractive Fermi gases with imbalanced spin populations in trapped one-dimensional configurations with ground state properties determined with the local density approximation starting from the exact Bethe-ansatz equations for the homogeneous case.Abstract:
We investigate two-component attractive Fermi gases with imbalanced spin populations in trapped one-dimensional configurations. The ground state properties are determined with the local density approximation, starting from the exact Bethe-ansatz equations for the homogeneous case. We predict that the atoms are distributed according to a two-shell structure: a partially polarized phase in the center of the trap and either a fully paired or a fully polarized phase in the wings. The partially polarized core is expected to be a superfluid of the Fulde-Ferrell-Larkin-Ovchinnikov type. The size of the cloud as well as the critical spin polarization needed to suppress the fully paired shell are calculated as a function of the coupling strength.read more
Citations
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Many-Body Physics with Ultracold Gases
TL;DR: In this article, a review of recent experimental and theoretical progress concerning many-body phenomena in dilute, ultracold gases is presented, focusing on effects beyond standard weakcoupling descriptions, such as the Mott-Hubbard transition in optical lattices, strongly interacting gases in one and two dimensions, or lowest-Landau-level physics in quasi-two-dimensional gases in fast rotation.
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Fermi gases in one dimension: From Bethe ansatz to experiments
TL;DR: In this paper, theoretical and experimental developments for one-dimensional Fermi gases are discussed. But the exact results obtained for Bethe ansatz integrable models of this kind enable the study of the nature and microscopic origin of a wide range of quantum many-body phenomena driven by spin population imbalance, dynamical interactions, and magnetic fields.
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Spin-imbalance in a one-dimensional Fermi gas
Yean-an Liao,Ann Sophie C. Rittner,Tobias Paprotta,Wenhui Li,Wenhui Li,Guthrie B. Partridge,Guthrie B. Partridge,Randall G. Hulet,Stefan K. Baur,Erich J. Mueller +9 more
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BCS-BEC Crossover and the Unitary Fermi Gas
Mohit Randeria,Edward Taylor +1 more
TL;DR: The crossover from weak coupling Bardeen-Cooper-Schrieffer (BCS) pairing to Bose-Einstein condensate (BEC) of tightly bound pairs, as a function of the attractive interaction in Fermi systems, has long been of interest to theoretical physicists as discussed by the authors.
References
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Bose-Einstein condensation in dilute gases
TL;DR: In this paper, a unified introduction to the physics of ultracold atomic Bose and Fermi gases for advanced undergraduate and graduate students, as well as experimentalists and theorists is provided.
Journal ArticleDOI
Bose-Einstein Condensation in Dilute Gases
TL;DR: In this paper, a unified introduction to the physics of ultracold atomic Bose and Fermi gases for advanced undergraduate and graduate students, as well as experimentalists and theorists is provided.