New Journal of Physics (Jan 2025)

Chiral discrimination through holonomic quantum coherent control with a trapped-ion qudit

  • Teng Liu,
  • Fa Zhao,
  • Pengfei Lu,
  • Qifeng Lao,
  • Xinxin Rao,
  • Min Ding,
  • Ji Bian,
  • Feng Zhu,
  • Le Luo

DOI
https://doi.org/10.1088/1367-2630/adac85
Journal volume & issue
Vol. 27, no. 2
p. 023023

Abstract

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A novel optical method for distinguishing chiral molecules is proposed and tested within a quantum simulator employing a trapped-ion qudit. This approach correlates the sign disparity of the dipole moment of chiral molecules with distinct cyclic evolution trajectories, yielding the unity population contrast induced by the different non-Abelian holonomies corresponding to the chirality. Harnessing the principles of holonomic quantum computation, our method can achieve highly efficient, non-adiabatic, and robust detection and separation of chiral molecules. Demonstrated in a trapped $ ^{171}\textrm{Yb}^+$ ion testbed, this scheme achieves high contrast in the population of a specific state, showcasing its resilience to the noise inherent in the driving field.

Keywords