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Quantitative Acoustic Models for Superfluid Circuits

Gauthier, Guillaume; Szigeti, Stuart; Reeves, Matthew T.; Baker, Mark; Bell, Thomas A.; Rubinsztein-Dunlop, Halina; Davis, Matthew J.; Neely, Tyler W.

Description

We experimentally realize a highly tunable superfluid oscillator circuit in a quantum gas of ultracold atoms and develop and verify a simple lumped-element description of this circuit. At low oscillator currents, we demonstrate that the circuit is accurately described as a Helmholtz resonator, a fundamental element of acoustic circuits. At larger currents, the breakdown of the Helmholtz regime is heralded by a turbulent shedding of vortices and density waves. Although a simple phase-slip...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
URI: http://hdl.handle.net/1885/213575
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.123.260402
Access Rights: Open Access

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