Roman Mankowsky is awarded the Reimar Lüst Grant
of the Max Planck Society for his PhD studies
Read moreMarta Gibert receives SNSF Professorship
for her project on Functional oxide heterostructures by design.
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.
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