252 citations · 2.2k across the 89 of their papers we have counts for
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Decay mechanisms of superflow of Bose-Einstein condensates in ring traps
Masaya Kunimi, Ippei Danshita
We study the supercurrent decay of a Bose-Einstein condensate in a ring trap combined with a repulsive barrier potential. In recent experiments, Kumar {\it et al.} [Phys. Rev. A {\…
Reduction of topological classification in cold atomic systems
Tsuneya Yoshida, Ippei Danshita, Robert Peters +1
One of the most challenging problems in correlated topological systems is a realization of the reduction of topological classification, but very few experimental platforms have bee…
Cooling schemes for two-component fermions in layered optical lattices
Shimpei Goto, Ippei Danshita
Recently, a cooling scheme for ultracold atoms in a bilayer optical lattice has been proposed [A. Kantian et al., arXiv:1609.03579]. In their scheme, the energy offset between the…
Response of the Higgs amplitude mode of superfluid Bose gases in a three dimensional optical lattice
Kazuma Nagao, Yoshiro Takahashi, Ippei Danshita
We study the Higgs mode of superfluid Bose gases in a three dimensional optical lattice, which emerges near the quantum phase transition to the Mott insulator at commensurate filli…
How to make a quantum black hole with ultra-cold gases
Ippei Danshita, Masanori Hanada, Masaki Tezuka
The realization of quantum field theories on an optical lattice is an important subject toward the quantum simulation. We argue that such efforts would lead to the experimental rea…
Localized Higgs modes of superfluid Bose gases in optical lattices: A Guzwiller mean-field study
Ippei Danshita, Shunji Tsuchiya
We study effects of a potential barrier on collective modes of superfluid Bose gases in optical lattices. We assume that the barrier is created by local suppression of the hopping…