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Supersolidity in Two-Dimensional Trapped Dipolar Droplet Arrays

Hertkorn, J ; Schmidt, J-N ; Guo, M ; Böttcher, F ; H Ng, K S ; Graham, S D ; Uerlings, P ; Büchler, H P ; Langen, T ; Zwierlein, M ; Pfau, T

Physical review letters, 2021-10, Vol.127 (15), p.1 [Periódico revisado por pares]

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Título:
Supersolidity in Two-Dimensional Trapped Dipolar Droplet Arrays
Autor: Hertkorn, J ; Schmidt, J-N ; Guo, M ; Böttcher, F ; H Ng, K S ; Graham, S D ; Uerlings, P ; Büchler, H P ; Langen, T ; Zwierlein, M ; Pfau, T
Assuntos: Bose-Einstein condensates ; Broken symmetry ; Crystallization ; Droplets ; Elementary excitations ; Excitation ; Excitation spectra ; Fluids ; Helium ; Superfluidity
É parte de: Physical review letters, 2021-10, Vol.127 (15), p.1
Descrição: We theoretically investigate the ground states and the spectrum of elementary excitations across the superfluid to droplet crystallization transition of an oblate dipolar Bose-Einstein condensate. We systematically identify regimes where spontaneous rotational symmetry breaking leads to the emergence of a supersolid phase with characteristic collective excitations, such as the Higgs amplitude mode. Furthermore, we study the dynamics across the transition and show how these supersolids can be realized with standard protocols in state-of-the-art experiments.
Editor: College Park: American Physical Society
Idioma: Inglês

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