86 citations · 167 across the 7 of their papers we have counts for
6 papers
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…
Correlation in superradiance: A closed-form approach to cooperative effects
S. F. Yelin, M. Kostrun, Tun Wang +1
We have developed a novel method to describe superradiance and related cooperative and collective effects in a closed form. Using the method we derive a two-atom master equation in…
Superradiance in ultracold Rydberg gases
Tun Wang, S. F. Yelin, R. Cote +6
Experiments in dense, ultracold gases of rubidium Rydberg atoms show a considerable decrease of the radiative excited state lifetimes compared to dilute gases. This accelerated dec…
Simple Mean-Field Theory for a Zero-Temperature Fermi Gas at a Feshbach Resonance
Juha Javanainen, Marijan Kostrun, Matt Mackie +1
We present a simple two-channel mean field theory for a zero-temperature two-component Fermi gas in the neighborhood of a Feshbach resonance. Our results agree with recent experime…
Collective molecule formation in a degenerate Fermi gas via a Feshbach resonance
Juha Javanainen, Marijan Kostrun, Yi Zheng +6
We model collisionless collective conversion of a degenerate Fermi gas into bosonic molecules via a Feshbach resonance, treating the bosonic molecules as a classical field and seed…
Theory of coherent photoassociation of a Bose-Einstein condensate
Marijan Kostrun, Matt Mackie, Robin Cote +1
We study coherent photoassociation, phenomena analogous to coherent optical transients in few-level systems, which may take place in photoassociation of an atomic Bose-Einstein con…