52 citations · 144 across the 9 of their papers we have counts for
9 papers · 1 filter
Uniform spin susceptibility and spin-gap phenomenon in the BCS-BEC crossover regime of an ultracold Fermi gas
H. Tajima, T. Kashimura, R. Hanai +2
We investigate the uniform spin susceptibility in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover regime of an ultracold Fermi gas. Inclu…
Pseudogap phenomenon and effects of population imbalance in the normal state of a unitary Fermi gas
Takashi Kashimura, Ryota Watanabe, Yoji Ohashi
We investigate strong-coupling corrections to single-particle excitations in the normal state of a spin-polarized unitary Fermi gas. Within the framework of an extended T-matrix ap…
Excitation properties and effects of mass imbalance in the BCS-BEC crossover regime of an ultracold Fermi gas
Ryo Hanai, Takashi Kashimura, Ryota Watanabe +2
We investigate single-particle properties of a mass-imbalanced Fermi gas in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover region. In the presence o…
Spin susceptibility and fluctuation corrections in the BCS-BEC crossover regime of an ultracold Fermi gas
Takashi Kashimura, Ryota Watanabe, Yoji Ohashi
We investigate magnetic properties and effects of pairing fluctuations in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover regime of an ultracold Ferm…
Superfluid phase transition and strong-coupling effects in an ultracold Fermi gas with mass imbalance
Ryo Hanai, Takashi Kashimura, Ryota Watanabe +2
We investigate the superfluid phase transition and effects of mass imbalance in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover regime of an cold Fer…
Magnetic properties and strong-coupling corrections in an ultracold Fermi gas with population imbalance
Takashi Kashimura, Ryota Watanabe, Yoji Ohashi
We investigate magnetic properties of an ultracold Fermi gas with population imbalance. In the presence of population imbalance, the strong-coupling theory developed by Nozieres an…
Superfluid/ferromagnet/superfluid-junction and -phase in a superfluid Fermi gas at finite temperatures
Takashi Kashimura, Shunji Tsuchiya, Yoji Ohashi
We investigate the stability of -phase in a polarized superfluid Fermi gas (, where is the number of atoms in the hyperfine state described by pse…
-junction and spontaneous current state in a superfluid Fermi gas
Takashi Kashimura, Shunji Tsuchiya, Yoji Ohashi
We discuss an idea to realize a spontaneous current in a superfluid Fermi gas. When a polarized Fermi superfluid ($N_\up > N_\dwn$, where is the number of atoms in the hyperf…
Superfluid/ferromagnet/superfluid junction and -phase in a superfluid Fermi gas
Takashi Kashimura, Shunji Tsuchiya, Yoji Ohashi
We investigate the possibility of superfluid/ferromagnet/superfluid (SFS)-junction in a superfluid Fermi gas. To examine this possibility in a simple manner, we consider an attract…