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Scientific article
English

Observation of universal Hall response in strongly interacting Fermions

Published inScience, vol. 381, no. 6656, p. 427-430
Publication date2023
First online date2023-07-28
Abstract

The Hall effect, which originates from the motion of charged particles in magnetic fields, has deep consequences for the description of materials, extending far beyond condensed matter. Understanding such an effect in interacting systems represents a fundamental challenge, even for small magnetic fields. In this work, we used an atomic quantum simulator in which we tracked the motion of ultracold fermions in two-leg ribbons threaded by artificial magnetic fields. Through controllable quench dynamics, we measured the Hall response for a range of synthetic tunneling and atomic interaction strengths. We unveil a universal interaction-independent behavior above an interaction threshold, in agreement with theoretical analyses. The ability to reach hard-to-compute regimes demonstrates the power of quantum simulation to describe strongly correlated topological states of matter.

eng
Keywords
  • magnetic field, low
  • tunneling
  • charged particle
  • topological
  • tracks
  • Hall effect
  • condensed matter
  • quenching
NoteMain Text: 6 pages, 4 figures; Supplementary Material: 9 pages, 10 figures
Research group
Citation (ISO format)
ZHOU, T.-W. et al. Observation of universal Hall response in strongly interacting Fermions. In: Science, 2023, vol. 381, n° 6656, p. 427–430. doi: 10.1126/science.add1969
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Article (Submitted version)
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ISSN of the journal0036-8075
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