Dynamic and steady control of quantum coherence in photonic crystals via the Zeeman effect  

作　　者：CHEN LuZhou HUANG YongGang JIN ChongJun WANG XueHua 

机构地区：[1]State Key Laboratory of Optoelectronic Materials and Technologies,School of Physics and Engineering,Sun Yat-Sen University,Guang zhou 510275,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2012年第12期2300-2304,共5页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Key Basic Research Special Foundation of China (Grant Nos. 2006CB921706 and 2010CB923200);the National Natural Science Foundation of China (Grant Nos. 10574160 and10725420)

摘　　要：The dynamic evolution of a multi-level atom in the three-dimensional photonic crystal under an applied magnetic field is investigated.By combining the Zeeman effect with the photonic band gap effect,the dynamic quantum superposition states and steady quantum coherent trapping states of the atom can be flexibly controlled.This paves the way for coherent manipulation of quantum states in the solid-state system,which has important applications in quantum information processing.The dynamic evolution of a multi-level atom in the three-dimensional photonic crystal under an applied magnetic field is investigated.By combining the Zeeman effect with the photonic band gap effect,the dynamic quantum superposition states and steady quantum coherent trapping states of the atom can be flexibly controlled.This paves the way for coherent manipulation of quantum states in the solid-state system,which has important applications in quantum information processing.

关 键 词：quantum superposition state control of quantum coherence photonic crystal gap Zeeman effect 

分 类 号：O413.1[理学—理论物理] TB34[理学—物理]