Superfluid rings as quantum pendulums

arXiv:2312.15290 · cond-mat.quant-gas, quant-ph · Submitted 2023-12-23 · Read on arXiv

cond-mat.quant-gas, quant-ph

Submitted: 2023-12-23

Updated: 2024-01-26

Comments: 8 pages

Journal ref: Phys. Rev. Research 6, 033120 (2024)

DOI: 10.1103/PhysRevResearch.6.033120

License: http://creativecommons.org/licenses/by/4.0/

The gist: A feasible experimental proposal to realize a non-dispersive quantum pendulum is presented.

Abstract

A feasible experimental proposal to realize a non-dispersive quantum pendulum is presented. The proposed setup consists of an ultracold atomic cloud, featuring attractive interatomic interactions, loaded into a tilted ring potential. The classical and quantum domains are switched on by tuned interactions, and the classical dynamical stabilization of unstable states, i.e. a la Kapitza, is shown to be driven by quantum phase imprinting. The potential use of this system as a gravimeter is discussed.

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