Transient Supersolid Properties in an Array of Dipolar Quantum Droplets Article Swipe
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· 2019
· Open Access
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· DOI: https://doi.org/10.1103/physrevx.9.011051
· OA: W2912842860
We study theoretically and experimentally the emergence of supersolid\nproperties in a dipolar Bose-Einstein condensate. The theory reveals a ground\nstate phase diagram with three distinct regimes - a regular Bose-Einstein\ncondensate, incoherent and coherent arrays of quantum droplets. In the latter\nthe droplets are connected by a finite superfluid density, which leads - in\naddition to the periodic density modulation - to a robust phase coherence\nthroughout the whole system. We further theoretically demonstrate that we are\nable to dynamically approach the ground state in our experiment and that its\nlifetime is only limited by three-body losses. Experimentally we probe and\nconfirm the signatures of the phase diagram by observing the in-situ density\nmodulation as well as the phase coherence using matter wave interference.\n
