摘要
提出了一个利用原子介质在光机械系统中产生纠缠的方案。研究结果表明,当腔场和原子介质间的耦合系数取合适值时,腔场和动镜,镜子与原子,以及腔场和原子之间都是纠缠的。此外,考虑了腔场耗散效应,并给出用"logarithmic negativity"去度量系统纠缠的数值解。
A scheme to generate entanglement in a cavity optomechanical system filled with atomic medium was proposed.If the coupling between the cavity field and atom medium is suitable,the entanglement is obtained between the cavity and movable mirror,between the mirror and atom,as well as between the cavity mode and atom.Furthermore,numerical solutions are given by employing logarithmic negativity to quantify the entanglement including the cavity losses.
出处
《量子电子学报》
CAS
CSCD
北大核心
2014年第3期273-278,共6页
Chinese Journal of Quantum Electronics
基金
Natural Science Research Project of High Education of Anhui Province(KJ2012Z080)
Young TeachersFund of Anhui University of Science and Technology under Grant(2012QNZ13)
关键词
量子光学
光机械系统
原子介质
哈密顿
纠缠
quantum optics
optomechanical system
atomic medium
Hamiltonian
entanglement
