Rapidly rotating quantum gas in a box potential

POSTER

Abstract

We use a rapidly-rotating Bose-Einstein condensate confined by a cylindrical optical potential to realize a uniform quantum fluid subject to a synthetic magnetic field. We use this setup to explore the propagation of chiral edge modes at the boundary, and the physics of homogenous vortex liquids. For edge states, we study their transport properties as a function of the wall steepness, revealing the crossover from ExB drift to sharp wall limit. We demonstrate that the edge modes are topologically protected against static disorders. For vortex liquids we show that the bulk vortex density equals to Feynman's number, and the vortex-vortex correlation function directly reflects their pair-wise interaction. Intriguingly, even in the limit of non-interacting bosons in the lowest Landau level, the vortices, as zeroes of random polynomials, are still predicted to repel.

*This work was supported by NSF, NSF CUA, Vannevar Bush Faculty Fellowship, and ARO.

Publication: [1] R. J. Fletcher, A. Shaffer, C. C. Wilson, P. B. Patel, Z. Yan, V. Crepel, B. Mukherjee, and M. W. Zwierlein, Geometric squeezing into the lowest Landau level, Science 372, 1318 (2021).
[2] B. Mukherjee, A. Shaffer, P. B. Patel, Z. Yan, C. C. Wilson, V. Crepel, R. J. Fletcher, and M. Zwierlein, Crystallization of bosonic quantum Hall states in a rotating quantum gas, Nature 601, 58 (2022).
[3] R. Yao, S. Chi, B. Mukherjee, A. Shaffer, M. Zwierlein, R. J. Fletcher, Observation of chiral edge transport in a rapidly-rotating quantum gas, ArXiv 2304.10468 (2023).

Presenters

  • Ruixiao Yao

    • Massachusetts Institute of Technology MIT

Authors

  • Ruixiao Yao

    • Massachusetts Institute of Technology MIT
  • Sungjae Chi

    • Massachusetts Institute of Technology
  • Airlia Shaffer

    • Massachusetts Institute of Technology MI
  • Biswaroop Mukherjee

    • Massachusetts Institute of Technology MIT
  • Richard J Fletcher

    • Massachusetts Institute of Technology
  • Martin Zwierlein

    • Massachusetts Institute of Technology