160 citations · 1.7k across the 43 of their papers we have counts for
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Pulsating and persistent vector solitons in a Bose-Einstein condensate in a lattice upon phase separation instability
Uttam Shrestha, Juha Javanainen, Janne Ruostekoski
We study numerically the outcome of the phase separation instability of a dual-species Bose-Einstein condensate in an optical lattice. When only one excitation mode is unstable a b…
Quantum dynamics of instability-induced pulsations of a Bose-Einstein condensate in an optical lattice
Uttam Shrestha, Juha Javanainen, Janne Ruostekoski
We study the dynamics of a Bose-Einstein condensate in a one-dimensional optical lattice in the limit of weak atom-atom interactions, including an approximate model for quantum flu…
Pulsating instability of a Bose-Einstein condensate in an optical lattice
Uttam Shrestha, Marijan Kostrun, Juha Javanainen
We find numerically that in the limit of weak atom-atom interactions a Bose-Einstein condensate in an optical lattice may develop a pulsating dynamical instability in which the ato…
Mean-field stationary state of a Bose gas at a Feshbach resonance
Andrew Carmichael, Juha Javanainen
We study the steady state of a zero-temperature Bose gas near a Feshbach or photoassociation resonance using a two-channel mean-field model that incorporates atomic and molecular c…
Manipulating atoms in an optical lattice: Fractional fermion number and its optical quantum measurement
J. Ruostekoski, J. Javanainen, G. V. Dunne
We provide a detailed analysis of our previously proposed scheme [Phys. Rev. Lett. 88, 180401, (2002)] to engineer the profile of the hopping amplitudes for atomic gases in a 1D op…