Chiral resolution by composite Raman pulses

Abstract

We present two methods for efficient detection of chiral molecules based on sequences of single pulses and Raman pulse pairs. The chiral molecules are modelled by a closed-loop three-state system with different signs in one of the couplings for the two enantiomers. One method uses a sequence of three interaction steps: a single pulse, a Raman pulse, and another single pulse. The other method uses a sequence of only two interaction steps: a Raman pulse, and a single pulse. The second method is simpler and faster but requires a more sophisticated Raman pulse than the first one. Both techniques allow for straightforward generalizations by replacing the single and Raman pulses with composite pulse sequences. The latter achieve very high signal contrast and far greater robustness to experimental errors than by using single pulses. We demonstrate that both constant-rotation (i.e., with phase compensation) and variable-rotation (i.e., with phase distortion) composite pulses can be used, the former being more accurate and the latter being simpler and faster.

7 pages, 7 figures

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Cited by in corpus (17)

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• Enantio-conversion of chiral mixtures via optical pumping
• Robust population inversion in three-level systems by composite pulses
• Supervised learning for robust quantum control in composite-pulse systems
• Enantio-detection of cyclic three-level chiral molecules in a driven cavity
• Composite pulses for high fidelity population transfer in three-level systems
• 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
• Efficient and robust chiral discrimination by invariant-based inverse engineering
• Robust transitionless quantum driving: Concatenated approach
• Enantiomer-Specific Pumping of Chiral Molecules
• Optical-pumping enantio-conversion of chiral mixtures in presence of tunneling between chiral states
• Enantiospecific Two-Photon Electric-Dipole Selection Rule of Chiral Molecules
• Fast chiral resolution with optimal control