322 citations · 3.2k across the 60 of their papers we have counts for
61 papers
Rotation Breaks Kibble-Zurek Universality
Shiva Dwivedi, Kenichi Kasamatsu, Adolfo Del Campo +1
We show that trap rotation overrides Kibble-Zurek (KZ) universality when a 2D Bose-Einstein condensate forms via a finite-time quench. In stochastic Gross-Pitaevskii simulations, t…
Critical velocity for wake vortex generation behind a plate in a superflow
Haruya Kokubo, Kenichi Kasamatsu, Hiromitsu Takeuchi
We study theoretically the critical velocity for quantum vortex generation by a thin plate-shaped obstacle moving through a uniform Bose-Einstein condensate. Our results base…
Impact of density inhomogeneity on the critical velocity for vortex shedding in a harmonically trapped Bose-Einstein condensate
Haruya Kokubo, Kenichi Kasamatsu
We report on a numerical study of the critical velocity for creation of quantized vortices by a moving Gaussian obstacle in a trapped Bose-Einstein condensate, modeled by the Gross…
Kelvin wave in miscible two-component Bose-Einstein condensates
Kenichi Kasamatsu, Maki Okada, Hiromitsu Takeuchi
We study the dispersion of Kelvin waves propagating along single- and half-quantum vortices in miscible two-component Bose-Einstein condensates based on the analysis of the Bogolou…
Dynamics of two quantized vortices belonging to different components of binary Bose-Einstein condensates in a circular box potential
Junsik Han, Kenichi Kasamatsu, Makoto Tsubota
This study aims to research on dynamics of two quantized vortices in miscible two-component Bose--Einstein condensates, trapped by a circular box potential by using the Gross--Pita…
Quantum droplet of a two-component Bose gas in an optical lattice near the Mott insulator transition
Yoshihiro Machida, Ippei Danshita, Daisuke Yamamoto +1
We theoretically study dynamical formation of a quantum droplet in a two-component Bose-Hubbard system with an external trap potential. Specifically, the superfluid in the central…