Quantum critical behavior in strongly interacting Rydberg gases (2008)
Weimer, Hendrik, Löw, Robert, Pfau, Tilman, Büchler, Hans Peter
We study the appearance of correlated many-body phenomena in an ensemble of atoms driven resonantly into a strongly interacting Rydberg state. The ground state of the Hamiltonian describing the...
Vortex lattice locking in rotating two-component Bose–Einstein condensates (2008)
Barnett, Ryan, Refael, Gil, Porter, Mason A., Büchler, Hans Peter
The vortex density of a rotating superfluid, divided by its particle mass, dictates the superfluid's angular velocity through the Feynman relation. To find how the Feynman relation applies to...