摘要
多能级系统中的vacuum-induced coherence(VIC)效应是一种重要的量子干涉效应,研究了VIC效应导致的系统电磁感应透明现象,并且改变了系统的吸收、增益和色散等性质,分析了在发生VIC效应时系统能级粒子数分布规律.另外,考虑复数拉比频率的相位变化时系统可呈现出光学双稳态效应.
In this paper,we report the effects of vacuum-induced coherence in a laser-driven four-level atom consisting of three near-degenerate upper levels having an additional coherence term due to interaction with the vacuum of the radiation field.We show that such coherence preserves the electromagnetically induced transparency and optical bistability phenomena.The dynamical behavior of the population distribution via vacuum-induced coherence was also analyzed numerically.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第11期6441-6445,共5页
Acta Physica Sinica
基金
国家自然科学基金(批准号:60278016和10464002)资助的课题.~~
