129 citations · 509 across the 33 of their papers we have counts for
4 papers · 1 filter
Phase Dependence of Phonon Tunneling in Bosonic Superfluid-Insulator-Superfluid Junctions
Ippei Danshita, Nobuhiko Yokoshi, Susumu Kurihara
We consider the tunneling of phonon excitations across a potential barrier spatially separating two condensates with different macroscopic phases. We analyze the relation between t…
Superfluid-Mott Insulator Transition of Spin-1 Bosons in an Optical Lattice
Shunji Tsuchiya, Susumu Kurihara, Takashi Kimura
We have studied superfluid-Mott insulating transition of spin-1 bosons interacting antiferromagnetically in an optical lattice. We have obtained the zero-temperature phase diagram…
Collective Excitations of Dilute Bose-Fermi Superfluid Mixtures
Bernhard Hikaru Valtan, Munehiro Nishida, Susumu Kurihara
Using the effective action formalism, we investigate collective excitations of a dilute mixture of a Bose gas and a two component Fermi gas when both bosons and fermions have under…
Topological Excitations in Spinor Bose-Einstein Condensates
Shunji Tuchiya, Susumu Kurihara
We investigate the properties of skyrmion in the ferromagnetic state of spin-1 Bose-Einstein condensates by means of the mean-field theory and show that the size of skyrmion is fix…