Enantiodetection of cyclic three-level chiral molecules in a driven cavity

Chen, Yu-Yuan; Cheng, Jian-Jian; Li, Yong

doi:10.1103/physrevresearch.4.013100

Cited by 17 publications

(9 citation statements)

References 79 publications

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“…Based on such cyclic three-level systems, one can use different schemes, such as enantio-selective three-wave * yongli@hainanu.edu.cn mixing [17][18][19][20][21], enantio-selective absorption [22], enantioselective AC stark effect [23] and enantio-selective twodimensional spectra [24], to discriminate the left-and right-handed molecules. Moreover, some more ingenious sources of modern optics physics, such as frequency entangled photons [25], quantized photons [26,27], and correlated photons in cavities [28], have been introduced to enhance the performance of enantiodiscrimination.…”

Section: Introductionmentioning

confidence: 99%

Enantio-specific state transfer of chiral molecules through enantio-selective shortcut-to-adiabaticity paths

Cheng¹,

Li²

2023

Preprint

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An interesting method of fast enantio-specific state transfer is proposed for cyclic three-level systems of chiral molecules. We show that the fast population transfer via shortcut to adiabaticity can be accomplished for the cyclic three-level system of a general (chiral) molecule with invariantbased inverse engineering of the coupling strengths. By choosing appropriate parameters, the two enantiomers, which are initially prepared in their ground states in the three-level systems, will evolve respectively along their enantio-selective shortcut-to-adiabaticity paths to different-energy final states simultaneously, namely achieving the fast enantio-specific state transfer.

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Section: Introductionmentioning

confidence: 99%

Enantio-specific state transfer of chiral molecules through enantio-selective shortcut-to-adiabaticity paths

Cheng¹,

Li²

2023

Preprint

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“…For example, one enantiomeric form is beneficial in designing pharmaceuticals, while the other one is useless or even harmful. Thus, enantiodiscrimination [3][4][5][6][7][8][9][10][11][12][13][14][15], spatial enantio-separation [16][17][18][19][20][21][22][23], enantio-specific state transfer [24][25][26][27][28][29][30][31][32][33][34][35][36][37], and enantioconversion [38][39][40][41][42][43][44][45][46] of chiral mixtures are currently important research topics in the chemical and biological fields.…”

Section: Introductionmentioning

confidence: 99%

“…In the past two decades, based on the threelevel ∆-type model of chiral molecules, some theoretical schemes on enantio-discrimination [3][4][5][6][7][8][9][10][11][12][13][14][15], spatial enantio-separation [16][17][18][19][20][21][22][23], and enantio-specific state transfer [24][25][26][27][28][29][30][31][32][33][34][35][36][37] have been proposed. The three-level ∆-type model is composed of three electromagnetic fields coupled respectively to three related electric-dipole transitions of chiral molecules.…”

Section: Introductionmentioning

confidence: 99%

“…The three-level ∆-type model is composed of three electromagnetic fields coupled respectively to three related electric-dipole transitions of chiral molecules. By taking advantage * yongli@hainanu.edu.cn of the property of the overall phase-difference π of the three Rabi frequencies for the two enantiomers, enantiodiscrimination [3][4][5][6][7][8][9][10][11][12][13][14][15], spatial enantio-separation [16][17][18][19][20][21][22][23], and enantio-specific state transfer [24][25][26][27][28][29][30][31][32][33][34][35][36][37] of chiral mixtures can be achieved. Particularly, the experiments on enantio-discrimination [47][48][49][50][51][52][53] and enantio-specific state transfer [54][55][56] have been achieved based on the three-level ∆-type model of chiral molecules.…”

Section: Introductionmentioning

confidence: 99%

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Optical-pumping enantio-conversion of chiral mixtures in presence of tunneling between chiral states

Zou¹,

Li²

2023

Preprint

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Enantio-conversion of chiral mixtures has become an important research topic in chemical and biological fields. Here we propose a scheme for enantio-conversion of chiral mixtures via optical pumping based on a four-level model of chiral molecules composed of two chiral ground states and two achiral excited states, in which there exists a tunneling interaction between the chiral states. By eliminating one of the achiral excited states in the case of large detuning and well designing the detuning and coupling strengths of the electromagnetic fields, the induced indirect tunneling interaction between the chiral ground states can be cancelled with the direct tunneling interaction, and the induced indirect interaction between the left-handed chiral state and the remained achiral excited state can be cancelled with the direct one between them. Hence, the left-handed ground state is unchanged and the right-handed one can be excited to an achiral excited state, i.e., establishing chiral-state-selective excitations. By numerically calculating the populations of two chiral ground states, we find that the high enantiomeric excess can be achieved with almost only the left-handed ground state being populated. That means the high-efficiency enantio-conversion of chiral mixtures is realized under the combining effect of the system dissipation and the chiral-stateselective excitations.

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“…This is an intrinsic feature of chiral molecules and is also applicable to vibrational and electronic transitions of chiral molecules such that the enantioselectivity is general to chiral molecules. The mechanism due to the cyclic three-level electric-dipole transitions was experimentally demonstrated in microwave three-wave mixing − and microwave enantiospecific state transfer. − Beyond these, it was widely used in other related theoretical research of chiral molecules. ,− …”

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confidence: 99%

Machine-Learning Enhanced Enantioselective Single-Shot-Single-Molecule ac Stark Spectroscopy

Mu,

Ye,

Zhang

2023

J. Phys. Chem. Lett.

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Enantiodiscrimination with single-molecule and single-shot resolution is fundamental for the understanding of the fate and behavior of two enantiomers in chemical reactions, biological activity, and the function of drugs. However, molecular decoherence gives rise to spectral broadening and random errors, offering major problems for most chiroptical methods in arriving at single-shot-single-molecule resolution. Here, we introduce a machine-learning strategy to solve these problems. Specifically, we focus on the task of single-shot measurement of single-molecule chirality based on enantioselective ac Stark spectroscopy. We find that, in the large-decoherence region, where the ac Stark spectroscopy without machine learning fails to distinguish molecular chirality, in contrast, the machine-learning-assisted strategy still holds a high correct rate of up to about 90%. Beyond this overwhelming superiority, the machine-learning strategy also has considerable robustness against variation of the decoherence rates between the training and testing sets.

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Enantiodetection of cyclic three-level chiral molecules in a driven cavity

Cited by 17 publications

References 79 publications

Enantio-specific state transfer of chiral molecules through enantio-selective shortcut-to-adiabaticity paths

Enantio-specific state transfer of chiral molecules through enantio-selective shortcut-to-adiabaticity paths

Optical-pumping enantio-conversion of chiral mixtures in presence of tunneling between chiral states

Machine-Learning Enhanced Enantioselective Single-Shot-Single-Molecule ac Stark Spectroscopy

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