Results 21 to 30 of about 5,965 (154)
Critical Temperature in the BCS-BEC Crossover with Spin-Orbit Coupling
Condensed Matter, 2021 We review the study of the superfluid phase transition in a system of fermions whose interaction can be tuned continuously along the crossover from Bardeen–Cooper–Schrieffer (BCS) superconducting phase to a Bose–Einstein condensate (BEC), also in the ...
Luca Dell’Anna, Stefano Grava
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Non-Hermitian BCS-BEC crossover of Dirac fermions
Journal of High Energy Physics, 2021 We investigate chiral symmetry breaking in a model of Dirac fermions with a complexified coupling constant whose imaginary part represents dissipation.
Takuya Kanazawa
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BEC-BCS Crossover in the Nambu--Jona-Lasinio Model of QCD [PDF]
, 2007 The BEC-BCS crossover in QCD at finite baryon and isospin chemical potentials is investigated in the Nambu--Jona-Lasinio model. The diquark condensation in two color QCD and the pion condensation in real QCD would undergo a BEC-BCS crossover when the ...
A. J. Leggett +7 more
core +2 more sources
BCS–BEC crossover in a quasi-two-dimensional Fermi superfluid
New Journal of Physics, 2023 We study the crossover from the Bardeen–Cooper–Shrieffer regime to the Bose–Einstein-condensation regime in an anisotropic trapped quantum gas of ultracold fermionic atoms.
Jing Zhou +4 more
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Entanglement between pairing and screening in the Gorkov-Melik-Barkhudarov correction to the critical temperature throughout the BCS-BEC crossover [PDF]
, 2017 The theoretical description of the critical temperature Tc of a Fermi superfluid dates back to the work by Gor'kov and Melik-Barkhudarov (GMB), who addressed it for a weakly-coupled (dilute) superfluid in the BCS (weak-coupling) limit of the BCS-BEC ...
Perali, A. +3 more
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Simulating Artificial 1D Physics with Ultra‐Cold Fermionic Atoms: Three Exemplary Themes
Advanced Quantum Technologies, Volume 3, Issue 6, June 2020., 2020 Ultra‐cold atomic systems are an excellent arena for simulating quantum many‐body phenomena. The current experimental progress in exploration of 1D ultra‐cold fermionic systems is reviewed from the perspective of three subjectively selected trends of high experimental interest: unconventional pairing in attractively interacting mixtures, systems ...
Jacek Dobrzyniecki, Tomasz Sowiński
wiley +1 more source
Goldstone and Higgs Hydrodynamics in the BCS–BEC Crossover
Condensed Matter, 2017 We discuss the derivation of a low-energy effective field theory of phase (Goldstone) and amplitude (Higgs) modes of the pairing field from a microscopic theory of attractive fermions.
Luca Salasnich
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Relativistic BCS-BEC crossover of a two-species Fermi gas with number density asymmetry at zero temperature [PDF]
, 2009 We systematically study relativistic two-species fermions with tunable attractive interactions and number-density asymmetry at zero temperature. In general, a Bardeen-Cooper-Schrieffer (BCS) - Bose-Einstein Condensation (BEC) - relativistic BEC (RBEC ...
Chien, Chih-Chun, Guo, Hao, He, Yan
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Relativistic BCS-BEC Crossover at Quark Level
EPJ Web of Conferences, 2010 The non-relativistic G0G formalism of BCS-BEC crossover at finite temperature is extended to relativistic fermion systems. The theory recovers the BCS mean field approximation at zero temperature and the non-relativistic results in a proper limit.
Zhuang P., Mao S., He L.
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Condensed Matter, 2020 We investigate pairing fluctuation effects in a two band fermionic system, where a shallow band in the Bardeen−Cooper−Schrieffer−Bose−Einstein condensation (BCS-BEC) crossover regime is coupled with a weakly interacting deep band.
Hiroyuki Tajima +2 more
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