
Q-MAC meetings in 2020/2021:
The Final International Symposium has been postponed until further notice.
Q-MAC regular meeting 2020 has been cancelled.
Read moreQ-MAC Extension on the grounds of excellence
Q-MAC Project has been successfully extended for 1 year
Read morePublication Detail / Abstract
Hubbard Model for Atomic Impurities Bound by the Vortex Lattice of a Rotating Bose-Einstein Condensate
published in PRL on June 14, 2016
> Full text via publisher
We investigate cold bosonic impurity atoms trapped in a vortex lattice formed by condensed bosons of another species. We describe the dynamics of the impurities by a bosonic Hubbard model containing occupation-dependent parameters to capture the effects of strong impurity-impurity interactions. These include both a repulsive direct interaction and an attractive effective interaction mediated by the Bose-Einstein condensate. The occupation dependence of these two competing interactions drastically affects the Hubbard model phase diagram, including causing the disappearance of some Mott lobes.
< Back