17-22 July 2022
Royal Conservatory of Music, Toronto
America/Toronto timezone

Catalyzation and domain supersolidity in binary dipolar condensates

18 Jul 2022, 17:00
1h 30m
Hart House (Hart House)

Hart House

Hart House

7 Hart House Cir, Toronto, ON M5S 3H3
Poster presentation Degenerate gases, many-body physics, and quantum simulation Poster session

Description

Luis. A. Peña Ardila
Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstr. 2, 30167 Hannover, Germany

Breakthrough experiments have newly explored the fascinating physics of dipolar quantum droplets and supersolids. The recent realization of dipolar mixtures opens further intriguing possibilities. We show that under rather general conditions, the presence of a second component catalyzes droplet nucleation and supersolidity in an otherwise unmodulated condensate. For miscible mixtures, droplet catalyzation results from the effective modification of the relative dipolar strength, and may occur even for a surprisingly small impurity doping. We show that different ground-states may occur, including the possibility of two coexisting interacting supersolids [1,2].

In addition, we predict the existence of a binary supersolid state in which the two components form a series of alternating domains, producing an immiscible double supersolid. Remarkably, we find that a dipolar component can even induce supersolidity in a nondipolar component. In stark contrast to single-component supersolids, the number of crystal sites is not strictly limited by the condensate populations, and the density is hence substantially lower. Our results are applicable to a wide range of dipole moment combinations, marking an important step towards long-lived bulk-supersolidity [3].

[1] R. N. Bisset, L. A. Peña Ardila, L. Santos. Phys. Rev. Lett. 126, 025301 – 2021
[2] D. Scheiermann, L. A. Peña Ardila, T. Bland, R. N. Bisset, L. Santos. arXiv:2202.08259 – 2022
[3] Thomas Bland, Elena Poli, Luis A. Peña Ardila, Luis Santos, Francesca Ferlaino, Russell N. Bisset. arXiv:2203.11119 – 2022

Presenter name Luis A. Peña Ardila
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Primary author

Luis Ardila (Leibnitz Hannover University)

Co-authors

Dr Thomas Bland ( Innsbruck University) Mr Daniel Scheiermann (Hannover University) Prof. Russell Bisset (University of Innsbruck) Prof. Luis Santos (Hannover University)

Presentation Materials

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