Open AccessJournal Article
Dressed Feshbach molecules in the BEC-BCS crossover
M.W.J. Romans,H. T. C. Stoof +1 more
TLDR
The random phase approximation (RPA) theory of the Bose-Einstein-condensation-Bardeen-Cooper-Schrieffer crossover in an atomic Fermi gas near a Feshbach resonance that includes the relevant two-body atomic physics exactly is presented.Abstract:
We present the random phase approximation (RPA) theory of the Bose-Einstein-condensation-Bardeen-Cooper-Schrieffer crossover in an atomic Fermi gas near a Feshbach resonance that includes the relevant two-body atomic physics exactly. This allows us to determine the probability for the dressed molecules in the Bose-Einstein condensate to be in the closed channel of the Feshbach resonance and to compare with the recent experiments of Partridge et al. [95, 020404 (2005)10.1103/PhysRevLett.95.020404] with , who have measured the same quantity.read more
Citations
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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.
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Universal properties of the ultracold Fermi gas
TL;DR: In this paper, the properties of a two-component ultracold Fermi gas along the BEC-BCS crossover were investigated and it was shown that the interaction energy and the free energy can be written in terms of a single dimensionless function.
Journal ArticleDOI
Universal thermodynamics of strongly interacting Fermi gases
TL;DR: In this paper, the results from three ultracold fermion experiments involving two completely distinct atomic species in different kinds of atomic-trap environment were compared with the predictions of a recent strong-interaction theory.
Journal ArticleDOI
Imbalanced Fermi gases at unitarity
K. B. Gubbels,H. T. C. Stoof +1 more
TL;DR: In this article, the authors discuss the progress in understanding strongly-interacting imbalanced Fermi gases, where the main goal is to describe the results of highly controlled experiments, and discuss two theoretical approaches to treat the inhomogeneous imbalanced fermi gas, namely the Landau-Ginzburg theory and the Bogoliubov-de Gennes approach.
Journal ArticleDOI
Population and mass imbalance in atomic Fermi gases
TL;DR: In this paper, an accurate theory of resonantly interacting Fermi mixtures with both spin and mass imbalance was developed, and the universal phase diagram of the mixture for different interactions strengths that lie on the BCS side of the Feshbach resonance.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
Universal properties of the ultracold Fermi gas
TL;DR: In this paper, the properties of a two-component ultracold Fermi gas along the BEC-BCS crossover were investigated and it was shown that the interaction energy and the free energy can be written in terms of a single dimensionless function.
Journal ArticleDOI
Universal thermodynamics of strongly interacting Fermi gases
TL;DR: In this paper, the results from three ultracold fermion experiments involving two completely distinct atomic species in different kinds of atomic-trap environment were compared with the predictions of a recent strong-interaction theory.
Journal ArticleDOI
Imbalanced Fermi gases at unitarity
K. B. Gubbels,H. T. C. Stoof +1 more
TL;DR: In this article, the authors discuss the progress in understanding strongly-interacting imbalanced Fermi gases, where the main goal is to describe the results of highly controlled experiments, and discuss two theoretical approaches to treat the inhomogeneous imbalanced fermi gas, namely the Landau-Ginzburg theory and the Bogoliubov-de Gennes approach.
Journal ArticleDOI
Population and mass imbalance in atomic Fermi gases
TL;DR: In this paper, an accurate theory of resonantly interacting Fermi mixtures with both spin and mass imbalance was developed, and the universal phase diagram of the mixture for different interactions strengths that lie on the BCS side of the Feshbach resonance.