Observation of a Dipolar Quantum Gas with Metastable Supersolid Properties

authored by: L. Tanzi, E. Lucioni, F. Famà, J. Catani, A. Fioretti, C. Gabbanini, Russell N. Bisset, Luis Santos, G. Modugno
Abstract: The competition of dipole-dipole and contact interactions leads to exciting new physics in dipolar gases, well illustrated by the recent observation of quantum droplets and rotons in dipolar condensates. We show that the combination of the roton instability and quantum stabilization leads under proper conditions to a novel regime that presents supersolid properties due to the coexistence of stripe modulation and phase coherence. In a combined experimental and theoretical analysis, we determine the parameter regime for the formation of coherent stripes, whose lifetime of a few tens of milliseconds is limited by the eventual destruction of the stripe pattern due to three-body losses. Our results open intriguing prospects for the development of long-lived dipolar supersolids.
Organisation(s): Institute of Theoretical Physics
CRC 1227 Designed Quantum States of Matter (DQ-mat)
External Organisation(s): University of Florence (UniFi)
Type: Article
Journal: Physical Review Letters
Volume: 122
ISSN: 0031-9007
Publication date: 05.04.2019
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Physics and Astronomy
Electronic version(s): https://doi.org/10.48550/arXiv.1811.02613 (Access: Open)
https://doi.org/10.1103/PhysRevLett.122.130405 (Access: Closed)

BibTeX

@article{5be7b5ffc2164414be08af690ce843d5,
title = "Observation of a Dipolar Quantum Gas with Metastable Supersolid Properties",
abstract = "The competition of dipole-dipole and contact interactions leads to exciting new physics in dipolar gases, well illustrated by the recent observation of quantum droplets and rotons in dipolar condensates. We show that the combination of the roton instability and quantum stabilization leads under proper conditions to a novel regime that presents supersolid properties due to the coexistence of stripe modulation and phase coherence. In a combined experimental and theoretical analysis, we determine the parameter regime for the formation of coherent stripes, whose lifetime of a few tens of milliseconds is limited by the eventual destruction of the stripe pattern due to three-body losses. Our results open intriguing prospects for the development of long-lived dipolar supersolids.",
author = "L. Tanzi and E. Lucioni and F. Fam{\`a} and J. Catani and A. Fioretti and C. Gabbanini and Bisset, {Russell N.} and Luis Santos and G. Modugno",
note = "Funding information: We acknowledge funding by the EC-H2020 research and innovation program (Grant No. 641122—QUIC) and the DFG (SFB 1227 DQ-mat and FOR 2247). R. N. B. was supported by the European Union{\textquoteright}s Horizon 2020 research and innovation program under Marie Sk?odowska-Curie Grant Agreement No. 793504 (DDQF). We acknowledge support by L. A. Gizzi, S. Gozzini, and M. Inguscio, useful conversations with M. Fattori, G. Ferrari, and S. Stringari, and technical assistance from A. Barbini, F. Pardini, M. Tagliaferri, and M. Voliani.",
year = "2019",
month = apr,
day = "5",
doi = "10.48550/arXiv.1811.02613",
language = "English",
volume = "122",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",
}