141 citations · 879 across the 49 of their papers we have counts for
4 papers · 1 filter
Single-particle properties and pseudogap effects in the BCS-BEC crossover regime of an ultracold Fermi gas above Tc
Shunji Tsuchiya, Ryota Watanabe, Yoji Ohashi
We investigate strong-coupling effects on normal state properties of an ultracold Fermi gas. Within the framework of -matrix approximation in terms of pairing fluctuations, we c…
Pseudogap in fermionic density of states in the BCS-BEC crossover of atomic Fermi gases
S. Tsuchiya, R. Watanabe, Y. Ohashi
We study pseudogap behaviors of ultracold Fermi gases in the BCS-BEC crossover region. We calculate the density of states (DOS), as well as the single-particle spectral weight, abo…
Instability of superfluid Fermi gases induced by a roton-like density mode in optical lattices
Yoshihiro Yunomae, Daisuke Yamamoto, Ippei Danshita +2
We study the stability of superfluid Fermi gases in deep optical lattices in the BCS--Bose-Einstein condensation (BEC) crossover at zero temperature. Within the tight-binding attra…
Supercurrent induced by tunneling Bogoliubov excitations in a Bose-Einstein condensate
Shunji Tsuchiya, Yoji Ohashi
We study the tunneling of Bogoliubov excitations through a barrier in a Bose-Einstein condensate. We extend our previous work [Phys. Rev. A \textbf{78}, 013628 (2008)] to the case…