Physics

Observation of chiral edge transport in a rapidly-rotating quantum gas

R. Yao, S. Chi, et al.

This research showcases the fascinating discovery of chiral edge modes in a rapidly rotating bosonic superfluid, highlighting a compelling transition between soft and hard wall behaviors. Conducted by Ruixiao Yao, Sungjae Chi, Biswaroop Mukherjee, Airlia Shaffer, Martin Zwierlein, and Richard J. Fletcher, this study reveals insights into edge propagation dynamics and their robustness against disruptions.

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Abstract

This paper demonstrates the observation of chiral edge modes in a rapidly rotating bosonic superfluid confined by an optical boundary. By tuning the wall sharpness, a smooth crossover between soft wall behavior (propagation speed proportional to wall steepness) and the hard wall regime (chiral free particles) is revealed. The energy gap between edge bands is inferred from atomic skipping motion, and the robustness of edge propagation against disorder is shown by introducing an optical obstacle.

Publisher

arXiv

Published On

May 03, 2024

Authors

Ruixiao Yao, Sungjae Chi, Biswaroop Mukherjee, Airlia Shaffer, Martin Zwierlein, Richard J. Fletcher

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