Droplets of trapped quantum dipolar bosons
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10.1103/PhysRevLett.117.205301
Inclou dades d'ús des de 2022
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hdl:2117/103119
Tipus de documentArticle
Data publicació2016-11-10
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Reconeixement 3.0 Espanya
Abstract
Strongly interacting systems of dipolar bosons in three dimensions confined by harmonic traps are analyzed using the exact path integral ground-state Monte Carlo method. By adding a repulsive two-body potential, we find a narrow window of interaction parameters leading to stable ground-state configurations of droplets in a crystalline arrangement. We find that this effect is entirely due to the interaction present in the Hamiltonian without resorting to additional stabilizing mechanisms or specific three-body forces. We analyze the number of droplets formed in terms of the Hamiltonian parameters, relate them to the corresponding s-wave scattering length, and discuss a simple scaling model for the density profiles. Our results are in qualitative agreement with recent experiments showing a quantum Rosensweig instability in trapped Dy atoms.
CitacióMacia, A., Sánchez, J., Boronat, J., Mazzanti, F. Droplets of trapped quantum dipolar bosons. "Physical review letters", 10 Novembre 2016, vol. 117, núm. 20, p. 1-5.
ISSN0031-9007
Versió de l'editorhttp://journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.205301
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dipdroplets_NEW.pdf | 3,590Mb | Visualitza/Obre |