Bulletin of the American Physical Society
APS March Meeting 2021
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session J62: Physical Review Invited Session: Forefront Research Across Disciplines
3:00 PM–6:00 PM,
Tuesday, March 16, 2021
Sponsoring Unit: APS
Chair: Sami Mitra, American Physical Society
Abstract: J62.00003 : Supersolidity in the ultracold: when atoms behave as solid and superfluid at the same time*
4:12 PM–4:48 PM
Recently, a novel class of atomic species, possessing an exceptionally strong magnetic character is entering the stage, offering a new conceptual twist for the field. In our laboratories in Innsbruck, we have realized the first dipolar Bose-Einstein condensate and Fermi gas of the highly magnetic Erbium species and the first dipolar quantum mixture of Erbium and Dysprosium.
I will report on our recent observations of the elusive and paradoxical supersolid state of quantum matter, using both Erbium and Dysprosium ultracold gases. Such paradoxical phase, in which crystal rigidity and superfluid flow coexist, has intrigued scientists across different disciplines for decades. It now became possible to create supersolidity in the ultracold thanks to the unique interplay between long-range dipolar interactions, contact interactions, and a powerful stabilization mechanism based on quantum fluctuations.
*Institut für Experimentalphysik, Universität Innsbruck, Innsbruck, Austria and Institute for Quantum Optics and Quantum Information (IQOQI), Innsbruck
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