Monday, July 1, 2013

1306.6717 (Piyush Jain et al.)

Demixing in symmetric supersolid mixtures    [PDF]

Piyush Jain, Saverio Moroni, Massimo Boninsegni, Lode Pollet
The droplet crystal phase of a symmetric binary mixture of Rydberg-blockaded dipolar Bose gases is studied by computer simulation. At high temperature each droplet comprises on average equal numbers of particles of either component, but the two components demix below the supersolid transition temperature, i.e., droplets mostly consist of particles of one component. Droplets consisting of the same component will also favor clustering. Demixing is driven by quantum tunnelling of particles across droplets over the system, and does not take place in a non-superfluid crystal. This effect should be easily detectable in a cold gas experiment.
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