Details
| Original language | English |
|---|---|
| Article number | 130405 |
| Journal | Physical Review Letters |
| Volume | 122 |
| Issue number | 13 |
| Early online date | 3 Apr 2019 |
| Publication status | Published - 5 Apr 2019 |
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.
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In: Physical Review Letters, Vol. 122, No. 13, 130405, 05.04.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Observation of a Dipolar Quantum Gas with Metastable Supersolid Properties
AU - Tanzi, L.
AU - Lucioni, E.
AU - Famà, F.
AU - Catani, J.
AU - Fioretti, A.
AU - Gabbanini, C.
AU - Bisset, Russell N.
AU - Santos, Luis
AU - Modugno, G.
N1 - 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’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.
PY - 2019/4/5
Y1 - 2019/4/5
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85064053498&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1811.02613
DO - 10.48550/arXiv.1811.02613
M3 - Article
C2 - 31012602
AN - SCOPUS:85064053498
VL - 122
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 13
M1 - 130405
ER -