Review of pseudogaps in strongly interacting Fermi gases

EJ Mueller - Reports on Progress in Physics, 2017 - iopscience.iop.org
A central challenge in modern condensed matter physics is developing the tools for
understanding nontrivial yet unordered states of matter. One important idea to emerge in this …

The pseudogap regime in the unitary Fermi gas

S Jensen, CN Gilbreth, Y Alhassid - The European Physical Journal …, 2019 - Springer
We discuss the pseudogap regime in the unitary Fermi gas (UFG), with a particular
emphasis on the auxiliary-field quantum Monte Carlo (AFMC) approach. We discuss …

BEC-BCS crossover and universal relations in unitary Fermi gases

S Gandolfi, KE Schmidt, J Carlson - … Review A—Atomic, Molecular, and Optical …, 2011 - APS
The contact parameter in unitary Fermi gases governs the short-range correlations and high-
momentum properties of the system. We perform accurate quantum Monte Carlo …

Spin susceptibility and fluctuation corrections in the BCS-BEC crossover regime of an ultracold Fermi gas

T Kashimura, R Watanabe, Y Ohashi - Physical Review A—Atomic, Molecular …, 2012 - APS
We investigate magnetic properties and effects of pairing fluctuations in the Bardeen-Cooper-
Schrieffer–Bose-Einstein condensation (BCS-BEC) crossover regime of an ultracold Fermi …

Mesoscopic spin transport between strongly interacting Fermi gases

Y Sekino, H Tajima, S Uchino - Physical Review Research, 2020 - APS
We investigate a mesoscopic spin current for strongly interacting Fermi gases through a
quantum point contact. Under the situation in which spin polarizations in the left and right …

Superfluid density of states and pseudogap phenomenon in the BCS-BEC crossover regime of a superfluid Fermi gas

R Watanabe, S Tsuchiya, Y Ohashi - … Review A—Atomic, Molecular, and Optical …, 2010 - APS
We investigate single-particle excitations and strong-coupling effects in the BCS-BEC
crossover regime of a superfluid Fermi gas. Including phase and amplitude fluctuations of …

Low-temperature properties of the infinite-dimensional attractive Hubbard model

A Koga, P Werner - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
We investigate the attractive Hubbard model in infinite spatial dimensions by combining
dynamical mean-field theory with a strong-coupling continuous-time quantum Monte Carlo …

Dispersions, weights, and widths of the single-particle spectral function in the normal phase of a Fermi gas

F Palestini, A Perali, P Pieri, GC Strinati - Physical Review B—Condensed …, 2012 - APS
The dispersions, weights, and widths of the peaks of the single-particle spectral function in
the presence of pair correlations, for a Fermi gas with either attractive or repulsive short …

Uniform spin susceptibility and spin-gap phenomenon in the BCS-BEC-crossover regime of an ultracold Fermi gas

H Tajima, T Kashimura, R Hanai, R Watanabe… - Physical Review A, 2014 - APS
We investigate the uniform spin susceptibility χ s in the BCS (Bardeen-Cooper-Schrieffer)-
BEC (Bose-Einstein condensation) crossover regime of an ultracold Fermi gas. Including …

Hidden fermionic excitation in the superconductivity of the strongly attractive Hubbard model

S Sakai, M Civelli, Y Nomura, M Imada - Physical Review B, 2015 - APS
We study the attractive Hubbard model within the dynamical mean-field theory, to elucidate
how the pseudogap and superconductivity at strong attractive interaction are related to those …