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Recent advances in the theory of the BCS-BEC crossover for fermionic superfluidity
Physica C: Superconductivity and its Applications, 2023The BCS-BEC crossover realized experimentally with ultra-cold Fermi gases may be considered as one of the important scientific achievements occurred during the last several years.
Giancarlo Calvanese Strinati
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Annals of Physics, 2023
The ground-state superfluid behavior of ultracold atomic Fermi gases with a short-range attractive interaction in a quasi-two-dimensional Lieb lattice is studied using BCS mean-field theory, within the context of BCS-BEC crossover.
Hao Deng +4 more
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The ground-state superfluid behavior of ultracold atomic Fermi gases with a short-range attractive interaction in a quasi-two-dimensional Lieb lattice is studied using BCS mean-field theory, within the context of BCS-BEC crossover.
Hao Deng +4 more
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Self-consistent inclusion of disorder in the BCS-BEC crossover near the critical temperature
Physical Review AWe develop a systematic theoretical approach to incorporate the effects of a static white-noise disorder into the BCS-BEC crossover near the critical temperature ($T_c$) of the superfluid transition.
M. Iskin
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Quenched disorder and the BCS-BEC crossover in the Hubbard model
Physical Review AWe study the impact of weak quenched disorder on the BCS-BEC crossover in the Hubbard model within a functional-integral approach. By deriving the thermodynamic potential up to second order in both the disorder potential and pairing fluctuations, we ...
M. Iskin
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Shear viscosity of an ultracold Fermi gas in the BCS–BEC crossover
Chinese Physics BWe report on the measurement of shear viscosity in an ultracold Fermi gas with variable temperatures and tunable interactions. A quadrupole mode excitation in an isotropic harmonic trap is used to quantify the shear viscosity of the quantum gas within ...
Jing 靖 Min 闵 +7 more
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On the theory of temperature BCS–BEC crossover in two-dimensional square-lattice superconductors
Low temperature physics (Woodbury, N.Y., Print)Physical properties of two-dimensional (2D) superconductors is an active area of long time researches in which many, even principle, questions are still open.
V. M. Loktev, V. Turkowski
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EXACT BCS SOLUTION IN THE BCS-BEC CROSSOVER
International Journal of Modern Physics B, 2006The exact Richardson solution of the reduced BCS Hamiltonian is used to study the BCS-to-BEC crossover, as well as the nature of Cooper pairs, in superconducting and Fermi superfluid media. Based on the exact eigenstate we will discuss the Cooper-pair concept proposing a scenario for the BCS-to-BEC crossover in which a mixture of quasifree fermions ...
Dukelsky, J. +2 more
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BCS–BEC crossover in one-dimensional integrable model
Physics Letters A, 2007zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wadati, Miki, Iida, Toshiaki
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Physical review B
Recent experiments on 2D superconductors allow the characterization of the critical temperature and of the phase diagram across the BCS-BEC crossover as a function of density.
Giovanni Midei +3 more
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Recent experiments on 2D superconductors allow the characterization of the critical temperature and of the phase diagram across the BCS-BEC crossover as a function of density.
Giovanni Midei +3 more
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Absence of BCS–BEC crossover in FeSe0.45Te0.55 superconductor
Chinese Physics BIn iron-based superconductor Fe(Se,Te), a flat band-like feature near the Fermi level was observed around the Brillouin zone center in the superconducting state.
Junjie 俊杰 Jia 贾 +23 more
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