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 …
Entanglement between pairing and screening in the Gorkov-Melik-Barkhudarov correction to the critical temperature throughout the BCS-BEC crossover
The problem of the theoretical description of the critical temperature T c of a Fermi superfluid
dates back to the work by Gorkov and Melik-Barkhudarov (GMB), who addressed it for a …
dates back to the work by Gorkov and Melik-Barkhudarov (GMB), who addressed it for a …
Gap equation with pairing correlations beyond the mean-field approximation and its equivalence to a Hugenholtz-Pines condition for fermion pairs
The equation for the gap parameter represents the main equation of the pairing theory of
superconductivity. Although it is formally defined through a single-particle property …
superconductivity. Although it is formally defined through a single-particle property …
High-order expansion around BCS theory
We demonstrate that summation of connected diagrams to high order starting from a BCS
hamiltonian is a viable generic unbiased approach for strongly correlated fermions in …
hamiltonian is a viable generic unbiased approach for strongly correlated fermions in …
Induced interactions in the BCS-BEC crossover of two-dimensional Fermi gases with Rashba spin-orbit coupling
We investigate the Gorkov–Melik-Barkhudarov (GM) correction to superfluid transition
temperature in two-dimensional Fermi gases with Rashba spin-orbit coupling (SOC) across …
temperature in two-dimensional Fermi gases with Rashba spin-orbit coupling (SOC) across …
Fulde-Ferrell-Larkin-Ovchinnikov state in the dimensional crossover between one-and three-dimensional lattices
We present a full phase diagram for the one-dimensional (1D) to three-dimensional (3D)
crossover of the Fulde-Ferrell–Larkin-Ovchinnikov (FFLO) state in an attractive Hubbard …
crossover of the Fulde-Ferrell–Larkin-Ovchinnikov (FFLO) state in an attractive Hubbard …
Finite-temperature phase diagram of quasi-two-dimensional imbalanced Fermi gases beyond mean field
We investigate the superfluid transition temperature of quasi-two-dimensional imbalanced
Fermi gases beyond the mean-field approximation, through the second-order (or induced) …
Fermi gases beyond the mean-field approximation, through the second-order (or induced) …
Superfluid density of the ultra-cold Fermi gas in optical lattices
T Paananen - Journal of Physics B: Atomic, Molecular and …, 2009 - iopscience.iop.org
In this paper, we study the superfluid density of the two-component Fermi gas in optical
lattices with population imbalance. Three different types of phases, the BCS state (Bardeen …
lattices with population imbalance. Three different types of phases, the BCS state (Bardeen …
Effect of the particle-hole channel on BCS–Bose-Einstein condensation crossover in atomic Fermi gases
Q Chen - Scientific Reports, 2016 - nature.com
Abstract BCS–Bose-Einstein condensation (BEC) crossover is effected by increasing pairing
strength between fermions from weak to strong in the particle-particle channel and has …
strength between fermions from weak to strong in the particle-particle channel and has …
Induced Interactions and the Superfluid Transition Temperature<? format?> in a Three-Component Fermi Gas
We study many-body contributions to the effective interaction between fermions in a three-
component Fermi mixture. We find that effective interactions induced by the third component …
component Fermi mixture. We find that effective interactions induced by the third component …