Catalyzation of supersolidity in binary dipolar condensates

authored by: D. Scheiermann, L. A.Peña Ardila, T. Bland, R. N. Bisset, L. Santos
Abstract: 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. Droplet catalyzation in miscible mixtures, which may occur even for a surprisingly small impurity doping, results from a local roton instability triggered by the doping-dependent modification of the effective dipolar strength. The catalyzation mechanism may trigger the formation of a two-fluid supersolid, characterized by a generally different superfluid fraction of each component, which opens intriguing possibilities for the future study of spin physics in dipolar supersolids.
Organisation(s): Institute of Theoretical Physics
QuantumFrontiers
External Organisation(s): Austrian Academy of Sciences
University of Innsbruck
Type: Article
Journal: Physical Review A
Volume: 107
ISSN: 2469-9926
Publication date: 02.2023
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Atomic and Molecular Physics, and Optics
Electronic version(s): https://doi.org/10.48550/arXiv.2202.08259 (Access: Open)
https://doi.org/10.1103/PhysRevA.107.L021302 (Access: Closed)

BibTeX

@article{1805d1e1b1f34bc399d60b920ae0ed0d,
title = "Catalyzation of supersolidity in binary dipolar condensates",
abstract = "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. Droplet catalyzation in miscible mixtures, which may occur even for a surprisingly small impurity doping, results from a local roton instability triggered by the doping-dependent modification of the effective dipolar strength. The catalyzation mechanism may trigger the formation of a two-fluid supersolid, characterized by a generally different superfluid fraction of each component, which opens intriguing possibilities for the future study of spin physics in dipolar supersolids.",
author = "D. Scheiermann and Ardila, {L. A.Pe{\~n}a} and T. Bland and Bisset, {R. N.} and L. Santos",
note = "Funding Information: Acknowledgments. We thank V. Cikojevic for his contribution during the first stages of this work. We acknowledge support of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy—EXC-2123 QuantumFrontiers—Grants No. 390837967 and No. FOR 2247. T.B. acknowledges funding from FWF Grant No. I4426 2019. ",
year = "2023",
month = feb,
doi = "10.48550/arXiv.2202.08259",
language = "English",
volume = "107",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "2",
}