6 papers
Capillary instability in a two-component Bose-Einstein condensate
Kazuki Sasaki, Naoya Suzuki, Hiroki Saito
Capillary instability and the resulting dynamics in an immiscible two-component Bose-Einstein condensate are investigated using the mean-field and Bogoliubov analyses. A long, cyli…
Dynamics of bubbles in a two-component Bose-Einstein condensate
Kazuki Sasaki, Naoya Suzuki, Hiroki Saito
The dynamics of a phase-separated two-component Bose-Einstein condensate are investigated, in which a bubble of one component moves through the other component. Numerical simulatio…
Crossover between Kelvin-Helmholtz and counter-superflow instabilities in two-component Bose-Einstein condensates
Naoya Suzuki, Hiromitsu Takeuchi, Kenichi Kasamatsu +2
Dynamical instabilities at the interface between two Bose--Einstein condensates that are moving relative to each other are investigated using mean-field and Bogoliubov analyses. Ke…
Von Kármán vortex street in a Bose-Einstein condensate
Kazuki Sasaki, Naoya Suzuki, Hiroki Saito
Vortex shedding from an obstacle potential moving in a Bose-Einstein condensate is investigated. Long-lived alternately aligned vortex pairs are found to form in the wake, as for t…
Rayleigh-Taylor instability and mushroom-pattern formation in a two-component Bose-Einstein condensate
Kazuki Sasaki, Naoya Suzuki, Daisuke Akamatsu +1
The Rayleigh-Taylor instability at the interface in an immiscible two-component Bose-Einstein condensate is investigated using the mean-field and Bogoliubov theories. Rayleigh-Tayl…
Quantum Kelvin-Helmholtz instability in phase-separated two-component Bose-Einstein condensates
Hiromitsu Takeuchi, Naoya Suzuki, Kenichi Kasamatsu +2
We theoretically study the Kelvin-Helmholtz instability in phase-separated two-component Bose-Einstein condensates using the Gross-Pitaevskii and Bogoliubov-de Gennes models. A fla…