Two-path interference for enantiomer-selective state transfer of chiral molecules

Abstract

With a microwave-regime cyclic three-state configuration, an enantiomer-selective state transfer~(ESST) is carried out through the two-path interference between a direct one-photon coupling and an effective two-photon coupling. The $\pi$-phase difference in the one-photon process between two enantiomers makes the interference constructive for one enantiomer but destructive for the other. Therefore only one enantiomer is excited into a higher rotational state while the other remains in the ground state. The scheme is of flexibility in the pulse waveforms and the time order of two paths. We simulate the scheme in a sample of cyclohexylmethanol~(C${}_7$H${}_{14}$O) molecules. Simulative results show the robust and high-fidelity ESST can be obtained when experimental concerns are considered. Finally, we propose to employ the finished ESST in implementing enantio-separation and determining enantiomeric excess.

10 pages, 9 figures. Accepted to publish in Phys. Rev. Applied

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• Evading thermal population influence in enantiomeric-specific state transfer based on a cyclic three-level system via ro-vibrational transitions
• Enantio-detection via cavity-assisted three-photon processes
• Enantiodiscrimination of chiral molecules via quantum correlation function
• Enantio-specific state transfer of chiral molecules through enantio-selective shortcut-to-adiabaticity paths
• Improved laser-distillation method for complete enantio-conversion of chiral mixtures
• Efficient and robust chiral discrimination by invariant-based inverse engineering
• Enantiomer-Specific Pumping of Chiral Molecules
• Optical-pumping enantio-conversion of chiral mixtures in presence of tunneling between chiral states
• Fast chiral resolution with optimal control
• Enantiospecific Two-Photon Electric-Dipole Selection Rule of Chiral Molecules