Collective dipole oscillations in a mixture of Bose and Fermi superfluids in the BCS–BEC crossover
We present a study for the collective dipole oscillations of a mixture of Bose and Fermi superfluids in the crossover from Bardeen–Cooper–Schrieffer (BCS) superfluid to a molecular Bose–Einstein condensate (BEC) in the ENS experimental setup (Ferrier ...
Wen Wen, Hui-jun Li
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DC and AC Josephson effects with superfluid Fermi atoms across a Feshbach resonance
We show that both DC and AC Josephson effects with superfluid Fermi atoms in the BCS-BEC crossover can be described at zero temperature by a nonlinear Schrodinger equation (NLSE).
A. Barone +19 more
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Applying BCS-BEC Crossover Theory To High Temperature Superconductors and Ultracold Atomic Fermi Gases [PDF]
This review is written at the time of the twentieth anniversary of the discovery of high temperature superconductors, which, nearly coincides with the important discovery of the superfluid phases of ultracold trapped fermionic atoms.
Chen, Qijin, Levin, K., Stajic, Jelena
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Disorder Induced BCS–BEC Crossover in an Ultracold Fermi Gas [PDF]
We develop the formalism for BCS–BEC crossover in the presence of weak random impurity and calculate the effect of the random potentials on the basic mean-field quantities. The disorder has been included through the Nozieres and Schmitt–Rink theory of superconducting fluctuations, and we obtain the disorder induced superfluid order parameter and ...
Khan, A., Basu, S., Tanatar, B.
openaire +4 more sources
Pairing sizes in attractively interacting Fermi gases with Spin-orbit Couplings
Extensive research has been lavished on effects of spin-orbit couplings (SOC) in attractively interacting Fermi systems in both neutral cold atom systems and condensed matter systems. Recently, it was suggested that a SOC drives a new class of BCS to BEC
Liu, Wu-Ming, Ye, Jinwu, Yu, Yi-Xiang
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Comparison of different pairing fluctuation approaches to BCS–BEC crossover [PDF]
23 pages, 6 ...
Levin, Kathryn +3 more
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Solitons in one-dimensional systems at the BCS-BEC crossover [PDF]
15 pages, 12 ...
Ren, Tianhao, Aleiner, Igor
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Collective mode of homogeneous superfluid Fermi gases in the BEC-BCS crossover
We perform a detailed study of the collective mode across the whole BEC-BCS crossover in fermionic gases at zero temperature, covering the whole range of energy beyond the linear regime. This is done on the basis of the dynamical BCS model.
A. A. Abrikosov +8 more
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Signatures of the BCS-BEC crossover in the yrast spectra of Fermi quantum rings
We study properties of the lowest energy states at nonzero total momentum (yrast states) of the Hubbard model for spin-1/2 fermions in the quantum ring configuration with attractive on-site interaction at low density.
Ulrich Ebling, Ali Alavi, Joachim Brand
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Exploring the BEC-BCS Crossover with an Ultracold Gas of $^6$Li Atoms
We present an overview of our recent measurements on the crossover from a Bose-Einstein condensate of molecules to a Bardeen-Cooper-Schrieffer superfluid.
Altmeyer, A. +7 more
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