Chrial Edge States in a Rotating Quantum Gas

ORAL

Abstract

We report on the direct, in-situ observation of chiral edge states in a Bose-Einstein condensate subjected to a synthetic magnetic field created using rapid rotation. We demonstrate the use of an underlying scalar potential to smoothly control the momentum of the injected edge mode, and extract the variation in the resulting mode propagation speed. Finally, we explore the dependence of the edge mode speed and excitation energy on the wall sharpness, demonstrating a crossover from ExB behavior to that of an infinitely sharp wall.

*This work was supported by the National Science Foundation (Center for Ultracold Atoms and Grant No. PHY-2012110) and the Vannevar Bush Faculty Fellowship. A.S. acknowledges support from the NSF GRFP. R.J.F. acknowledges funding from AFOSR YIP (FA9550-22-1-0066), M.Z. acknowledges funding from the Alexander von Humboldt Foundation.

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Presenters

  • Sungjae Chi

    • Massachusetts Institute of Technology

Authors

  • Sungjae Chi

    • Massachusetts Institute of Technology

  • Ruixiao Yao

    • Massachusetts Institute of Technology MIT

  • Airlia Shaffer

    • Massachusetts Institute of Technology MIT

  • Martin W Zwierlein

    • MIT
    • Massachusetts Institute of Technology

  • Richard J Fletcher

    • Massachusetts Institute of Technology