Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physics

Dipolar Quantum Gases go Supersolid

Tobias Donner

Published Apr 3, 2019• 9 citations
Publisher

Abstract

Three research teams observe that gases of magnetic atoms have the properties of a supersolid-a material whose atoms are crystallized yet flow without friction.
DOI
10.1103/physics.12.38

Related papers

Dipolar supersolids: Solid and superfluid at the same time

Tim Langen

Ultracold atomic gases with the right balance of interactions enter a phase that demonstrates a superposition of seemingly opposing properties.

Physics Today•Mar 1, 2022•3 citations

Sounds of a supersolid detected in dipolar atomic gases for the first time

Sean M. Mossman

Nature•Oct 16, 2019•1 citation

Observation of vortices in a dipolar supersolid

Eva Casotti, Elena Poli, Lauritz Klaus +6 more

Supersolids are states of matter that spontaneously break two continuous symmetries: translational invariance due to the appearance of a crystal structure and phase invariance due to phase locking of single-particle wave functions, responsible for superfluid phenomena. While originally predicted to be present in solid helium, ultracold quantum gases provided a first platform to observe supersolids, with particular success coming from dipolar atoms. Phase locking in dipolar supersolids has been probed through e.g. measurements of the phase coherence and gapless Goldstone modes, but quantized vortices, a hydrodynamic fingerprint of superfluidity, have not yet been observed. Here, with the prerequisite pieces at our disposal, namely a method to generate vortices in dipolar gases and supersolids with two-dimensional crystalline order, we report on the theoretical investigation and experimental observation of vortices in the supersolid phase. Our work reveals a fundamental difference in vortex seeding dynamics between unmodulated and modulated quantum fluids. This opens the door to study the hydrodynamic properties of exotic quantum systems with multiple spontaneously broken symmetries, in disparate domains such as quantum crystals and neutron stars.

arXiv:2403.18510•Mar 27, 2024•0 citations

Characterization of three-body loss in Er166 and optimized production of large Bose-Einstein condensates

Milan Krstajić, Péter Juhász, Jiří Kučera +4 more

Ultracold gases of highly magnetic lanthanide atoms have enabled the realization of dipolar quantum droplets and supersolids. However, future studies could be limited by the achievable atom numbers and hindered by high three-body loss rates. Here we study density-dependent atom loss in an ultracold gas of $^{166}\mathrm{Er}$ for magnetic fields below 4 G, identifying six previously unreported, strongly temperature-dependent features. We find that their positions and widths show a linear temperature dependence up to at least $15\phantom{\rule{0.16em}{0ex}}\textmu{}\mathrm{K}$. In addition, we observe a weak, polarization-dependent shift of the loss features with the intensity of the light used to optically trap the atoms. This detailed knowledge of the loss landscape allows us to optimize the production of dipolar Bose-Einstein condensates with more than $2\ifmmode\times\else\texttimes\fi{}{10}^{5}$ atoms and points towards optimal strategies for the study of large-atom-number dipolar gases in the droplet and supersolid regimes.

arXiv:2307.01245•Physical Review A•Dec 1, 2023•10 citations

Quantum gases show flashes of a supersolid

Lode Pollet

Nature•May 20, 2019•9 citations

Novel quantum magnets: Dipolar quantum gases

Han Pu

Bulletin of the American Physical Society•Mar 18, 2009•0 citations
Supersolids are states of matter that spontaneously break two continuous symmetries: translational invariance due to the appearance of a crystal structure and phase invariance due to phase locking of single-particle wave functions, responsible for superfluid phenomena. While originally predicted to be present in solid helium, ultracold quantum gases provided a first platform to observe supersolids, with particular success coming from dipolar atoms. Phase locking in dipolar supersolids has been probed through e.g. measurements of the phase coherence and gapless Goldstone modes, but quantized vortices, a hydrodynamic fingerprint of superfluidity, have not yet been observed. Here, with the prerequisite pieces at our disposal, namely a method to generate vortices in dipolar gases and supersolids with two-dimensional crystalline order, we report on the theoretical investigation and experimental observation of vortices in the supersolid phase. Our work reveals a fundamental difference in vortex seeding dynamics between unmodulated and modulated quantum fluids. This opens the door to study the hydrodynamic properties of exotic quantum systems with multiple spontaneously broken symmetries, in disparate domains such as quantum crystals and neutron stars.
Ultracold gases of highly magnetic lanthanide atoms have enabled the realization of dipolar quantum droplets and supersolids. However, future studies could be limited by the achievable atom numbers and hindered by high three-body loss rates. Here we study density-dependent atom loss in an ultracold gas of 166Er^{166}\mathrm{Er}166Er for magnetic fields below 4 G, identifying six previously unreported, strongly temperature-dependent features. We find that their positions and widths show a linear temperature dependence up to at least $15\phantom{\rule{0.16em}{0ex}}\textmu{}\mathrm{K}$. In addition, we observe a weak, polarization-dependent shift of the loss features with the intensity of the light used to optically trap the atoms. This detailed knowledge of the loss landscape allows us to optimize the production of dipolar Bose-Einstein condensates with more than $2\ifmmode\times\else\texttimes\fi{}{10}^{5}$ atoms and points towards optimal strategies for the study of large-atom-number dipolar gases in the droplet and supersolid regimes.