129 citations · 207 across the 13 of their papers we have counts for
5 papers · 1 filter
Collective Modes and Stability of Bose-Fermi Mixtures with a BCS-BEC Crossover
Hiroyuki Shibata, Nobuhiko Yokoshi, Susumu Kurihara
We investigate an ultracold Bose-Fermi mixture with a Feshbach resonance between two hyperfine states of fermions. Using a functional integral method, we calculate collective modes…
Collective Excitations of Bose-Einstein Condensates in a Double-Well Potential
Ippei Danshita, Kyota Egawa, Nobuhiko Yokoshi +1
We investigate collective excitations of Bose-Einstein condensates at absolute zero in a double-well trap. We solve the Bogoliubov equations with a double-well trap, and show that…
Gutzwiller study of spin-1 bosons in an optical lattice under a magnetic field
Takashi Kimura, Shunji Tsuchiya, Makoto Yamashita +1
We study spin-1 bosons in an optical lattice under a magnetic field by the Gutzwiller approximation. Our results thus obtained join the discontinuous phase boundary curves obtained…
Bogoliubov Excitations in a Kronig-Penney Potential
Ippei Danshita, Susumu Kurihara, Shunji Tsuchiya
With use of the Kronig-Penney model, we study the excitation spectrum of a Bose-Einstein condensate in a one-dimensional periodic potential. We solve the Bogoliubov equations analy…
Thermal transport properties of a charge density wave
Hiroyuki Yoshimoto, Susumu Kurihara
Effects of collective modes on thermoelectric properties of a charge density system is studied. We derive the temperature dependence of thermoelectric power and thermal conductivit…