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Molecular chirality has traditionally been viewed as a binary property where a molecule is classified as either chiral or achiral, yet in the recent decades mathematical methods for quantifying chirality have been explored. Here we use toy…

Chemical Physics · Physics 2024-11-28 Ethan Abraham , Abraham Nitzan

Chiral discrimination that is efficient to tiny amounts of chiral substances, especially at the single-molecule level, is highly demanded. Here, we propose a single-shot nondestructive quantum sensing method addressing such an issue. Our…

Quantum Physics · Physics 2023-10-05 Chong Ye , Yifan Sun , Yong Li , Xiangdong Zhang

Chirality and chiral molecules are key elements in modern chemical and biochemical industries. Individual addressing, and the eventual separation of chiral enantiomers has been and still is an important elusive task in molecular physics and…

We study the enantio-specific state transfer in a four-level model for symmetric-top chiral molecules. Such a model is formed by coupling the electric-dipole transitions among four appropriate working states with three electromagnetic…

Quantum Physics · Physics 2022-04-27 Bo Liu , Chong Ye , C. P. Sun , Yong Li

Distinguishing between enantiomers is crucial in the study of chiral molecules in chemistry and pharmacology. Many optical approaches rely on enantiospecific cyclic electric-dipole transitions induced by three microwave or laser beams.…

Quantum Physics · Physics 2025-12-11 Fen Zou , Yong Li , Peng Zhang

Distinguishing between the left- and right-handed versions of a chiral molecule (enantiomers) is vital, but also inherently difficult. Traditional optical methods using elliptically or circularly polarized light rely on weak linear effects…

Optics · Physics 2022-06-08 Laura Rego , David Ayuso

From the beginning of molecular theory, the interplay of chirality and magnetism has intrigued scientists. There is still the question if enantiospecific adsorption of chiral molecules occurs on magnetic surfaces. Enantiomer discrimination…

Separation of the two mirror images of a chiral molecule, the enantiomers, is a historically complicated problem of major relevance for biological systems. Since chiral molecules are optically active, it has been speculated that strong…

Chemical Physics · Physics 2024-10-23 Rosario R. Riso , Matteo Castagnola , Enrico Ronca , Henrik Koch

We explore the spatial enantioseparation of gaseous chiral molecules for the cyclic three-level systems coupled with three electromagnetic fields. Due to molecular rotations, the specific requirements of the polarization directions of the…

Atomic Physics · Physics 2021-11-16 Bo Liu , Chong Ye , C. P. Sun , Yong Li

We propose a method to separate enantiomers using parity violation in the Casimir-Polder potential between chiral mirrors and chiral molecules. The proposed setup involves a molecular beam composed of chiral molecules passing through a…

Quantum Physics · Physics 2019-01-21 Fumika Suzuki , Takamasa Momose , Stefan Yoshi Buhmann

Molecular chirality, a form of stereochemistry most often describing relative spatial arrangements of bonded neighbors around tetrahedral carbon centers, influences the set of 3D conformers accessible to the molecule without changing its 2D…

Machine Learning · Computer Science 2021-10-12 Keir Adams , Lagnajit Pattanaik , Connor W. Coley

When the weak-forces producing parity-violating effects are taken into account, there is a tiny energy difference between the total electronic energies of two enantiomers ($\Delta E_{PV}$), which might be the key to understand the evolution…

Chemical Physics · Physics 2026-03-03 Juan J. Aucar , Alessandro Stroppa , Gustavo A. Aucar

We study the effective chiral interaction between molecules arising from quantum dispersion interactions within a model in which a) the dominant excited states of a molecule form a band whose width is small compared to the average…

Soft Condensed Matter · Physics 2007-05-23 A. S. Issaenko , A. B. Harris , T. C. Lubensky

Chiral molecules are instrumental for molecular recognition in living organisms. Distinguishing between two opposite enantiomers, the mirror twins of the same chiral molecule, is both vital and challenging. Photoelectron circular dichroism…

Chemical Physics · Physics 2021-12-07 Andres F. Ordonez , David Ayuso , Piero Decleva , Olga Smirnova

The fundamental issues of symmetry related to chirality are discussed and applied to simple situations relevant to liquid crystals. We show that any chiral measure of a geometric object is a pseudoscalar (invariant under proper rotations…

Statistical Mechanics · Physics 2009-10-31 A. B. Harris , Randall D. Kamien , T. C. Lubensky

Strong-field ionization by counter-rotating two-color laser fields produces quantum interference between photoelectrons emitted on the leading and trailing edges of the laser field oscillations. We show that in chiral molecules, this…

We consider the discriminatory interaction of a chiral molecule with circularly polarised modes inside a cavity. Starting from a generalised Jaynes--Cummings model that includes both electric and magnetic dipole couplings, we derive the…

Single-loop cyclic three-level ($\Delta$-type) configuration of chiral molecules was used for enantio-separation in many theoretical works. Considering the effect of molecular rotation, this simple single-loop configuration is generally…

Quantum Physics · Physics 2018-12-12 Chong Ye , Quansheng Zhang , Yong Li

We examine the dynamics of chiral states of chiral molecules with high tunneling rates in dilute and condensed phases in the context of time-dependent perturbation theory. The chiral molecule is effectively described by an asymmetric…

Quantum Physics · Physics 2017-02-01 Farhad Taher Ghahramani , Arash Tirandaz

Spin polarization in chiral molecules is a magnetic molecular response associated with electron transport and enantioselective bond polarization that occurs even in the absence of an external magnetic field. An unexpected finding by Santos…