Engineering Neutral Atoms Beyond Hermitian Physics

POSTER

Abstract

Non-Hermitian Hamiltonians provide a powerful framework for de scribing open quantum systems with dissipation or particle loss. They en able novel topological and dynamical phenomena beyond Hermitian quan tum mechanics. Counterintuitive non-Hermitian phenomena, including chiral state transfer near exceptional points and the non-Hermitian skin effect, have been observed in spin-orbit-coupled lattices in 1D and 2D, respectively. Motivated by these results, we aim to generalize dissipation engineering to tweezer-defined lattice systems, where both lattice connec tivity and dissipation are fully programmable. We will discuss progress and opportunities in the near future.

Publication: Zhao, E., Wang, Z., He, C. et al. Two-dimensional non-Hermitian skin effect in an ultracold Fermi gas. Nature 637, 565–573 (2025). https://doi.org/10.1038/s41586-024-08347-3
Yi, W. An exceptional mass dance. Nat. Phys. 18, 370–371 (2022). https://doi.org/10.1038/s41567-022-01580-5

Presenters

  • Peng REN

    • Rice University

Authors

  • Peng REN

    • Rice University

  • Soham Mukherjee

    • Rice University

  • Yuchao Liu

    • Rice University

  • Ziyu He

    • Rice University

  • Entong Zhao

    • The Hong Kong University of Science and Technology (HKUST)

  • Chengdong HE

    • Rice University

  • Gyu-boong Jo

    • The Hong Kong University of Science and Technology (HKUST)