近日,美国光学会期刊《Optics Letters》上发表课题组最新研究成果。
论文题目:Attosecond all-optical control and visualization of quantum interference between degenerate magnetic states by circularly polarized pulses
作者信息:Chuan-Cun Shu, Yu Guo, Kai-Jun Yuan, Daoyi Dong, and André D. Bandrauk
论文摘要:
Controlling coherence and interference of quantum states is one of the central goals in quantum science. Different from energetically discrete quantum states, however, it remains a demanding task to visualize coherent properties of degenerate states (e.g., magnetic sublevels). It becomes further inaccessible in the absence of an external perturbation (e.g., Zeeman effect). Here, we present a theoretical analysis of all-optical control of degenerate magnetic states in the molecular hydrogen ion, by using two time-delayed co- and counterrotating circularly polarized attosecond extreme-ultraviolet (XUV) pulses. We perform accurate simulations to examine this model by solving the threedimensional time-dependent Schrödinger equation. A counterintuitive phenomenon of quantum interference between degenerate magnetic sublevels appears in the time-dependent electronic probability density, which is observable by using x-ray-induced transient angular and energy-resolved photoelectron spectra. This work provides an insight into quantum interference of electron dynamics inside molecules at the quantum degeneracy level.
论文链接:https://www.osapublishing.org/ol/abstract.cfm?uri=ol-45-4-960
Optics LettersPeer-reviewed journal
Description
Optics Letters is a biweekly peer-reviewed scientific journal published by The Optical Society. It was established in July 1977. The editor-in-chief is Xi-Cheng Zhang. The journal covers all topics pertaining to optics and photonics. Impact factor: 3.589 (2018)