研究人员发现量子关联单向控制“开关”

Group 1 - The research team from Shanxi University and Hunan Normal University has made significant progress in the study of non-Hermitian systems and non-reciprocal quantum correlations, with findings published in Nature Photonics [1][2] - Chirality, the asymmetry of objects and their mirror images, plays a crucial role in various fields, including physics, chemistry, and materials engineering, and is a powerful tool for controlling light-matter interactions in quantum physics [1] - The study demonstrates a non-reciprocal quantum correlation induced by chirality, where quantum correlations appear when two beams of light with the same polarization travel in opposite directions through an atomic ensemble, but disappear when they travel in the same direction [1][2] Group 2 - The research further proves that by flipping the propagation direction of one beam while keeping the polarization consistent, quantum correlations can be established and eliminated between two channels [2] - The discovery of a directional control "switch" for quantum correlations opens new pathways for achieving unidirectional quantum effects, potentially advancing directed quantum networks and non-reciprocal quantum metrology [2]