| I will discuss dipolar bosonic gases in quasi2D geometries where a Bose-Einstein condensate can have a roton-maxon spectrum. I will reduce the problem to the one described by a 2D Hamiltonian with momentum-dependent interactions and show the appearance of a supersolid ground when the roton energy reaches zero. The talk will be completed by the discussion of dynamical stability of supersolids and possibilities to find other exotic quantum states. |
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