The BCS–BEC crossover: From ultra-cold Fermi gases to nuclear systems
This report addresses topics and questions of common interest in the fields of ultra-cold
gases and nuclear physics in the context of the BCS–BEC crossover. By this crossover, the …
gases and nuclear physics in the context of the BCS–BEC crossover. By this crossover, the …
Pseudogap phenomena in ultracold atomic Fermi gases
Q Chen, J Wang - Frontiers of Physics, 2014 - Springer
The pairing and superfluid phenomena in a two-component ultracold atomic Fermi gas is an
analogue of Cooper pairing and superconductivity in an electron system, in particular, the …
analogue of Cooper pairing and superconductivity in an electron system, in particular, the …
Stability of spin-orbit coupled Fermi gases with population imbalance
We use the self-consistent mean-field theory to analyze the effects of Rashba-type spin-orbit
coupling (SOC) on the ground-state phase diagram of population-imbalanced Fermi gases …
coupling (SOC) on the ground-state phase diagram of population-imbalanced Fermi gases …
Enhancement effect of mass imbalance on Fulde-Ferrell-Larkin-Ovchinnikov type of pairing in Fermi-Fermi mixtures of ultracold quantum gases
J Wang, Y Che, L Zhang, Q Chen - Scientific reports, 2017 - nature.com
Ultracold two-component Fermi gases with a tunable population imbalance have provided
an excellent opportunity for studying the exotic Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) …
an excellent opportunity for studying the exotic Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) …
Instability of Fulde-Ferrell-Larkin-Ovchinnikov states in atomic Fermi gases in three and two dimensions
J Wang, Y Che, L Zhang, Q Chen - Physical Review B, 2018 - APS
The exotic Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states have been actively searched for
experimentally since the mean-field based FFLO theories were put forward half a century …
experimentally since the mean-field based FFLO theories were put forward half a century …
Ground states of atomic Fermi gases in a two-dimensional optical lattice with and without population imbalance
L Sun, Q Chen - Physical Review A, 2022 - APS
We study the ground-state phase diagram of population balanced and imbalanced ultracold
atomic Fermi gases with a short-range attractive interaction throughout the crossover from …
atomic Fermi gases with a short-range attractive interaction throughout the crossover from …
Relativistic BCS-BEC crossover in a boson-fermion model
J Deng, A Schmitt, Q Wang - Physical Review D—Particles, Fields, Gravitation …, 2007 - APS
We investigate the crossover from Bardeen-Cooper-Schrieffer (BCS) pairing to a Bose-
Einstein condensate (BEC) in a relativistic superfluid within a boson-fermion model. The …
Einstein condensate (BEC) in a relativistic superfluid within a boson-fermion model. The …
Thermodynamics and superfluid density in BCS-BEC crossover with and without population imbalance
We address the thermodynamics, density profiles, and superfluid density of trapped fermions
undergoing BCS-BEC crossover. We consider the case of zero and finite population …
undergoing BCS-BEC crossover. We consider the case of zero and finite population …
Factorization and Criticality in Finite Systems of Arbitrary Spin
We analyze ground state (GS) factorization in general arrays of spins si with XXZ couplings
immersed in nonuniform fields. It is shown that an exceptionally degenerate set of …
immersed in nonuniform fields. It is shown that an exceptionally degenerate set of …
The spin-imbalanced attractive Hubbard model in d= 3: Phase diagrams and BCS–BEC crossover at low filling
A Cichy, R Micnas - Annals of Physics, 2014 - Elsevier
We study the superconducting properties of the spin-imbalanced attractive Hubbard model
(AHM) in the presence of a Zeeman magnetic field, using the broken symmetry Hartree …
(AHM) in the presence of a Zeeman magnetic field, using the broken symmetry Hartree …