摘要
研究一个描述介观约瑟夫森结与量子辐射场相互作用系统的等效玻色子哈密顿量 .研究表明 ,当外场初始为相干态场 ,而介观约瑟夫森结处于真空态时 ,随着时间的演化 ,耦合系统的状态将演化成为压缩态 .并给出了这个耦合系统量子涨落的详细分析 .
An effective bosonic Hamiltonian describing the interaction of a mesoscopic Josephson junction with a quantized radiation field is studied. It is shown that when the field is initially in a coherent state and the junction initially in its lowest energy level state, the state of the coupled field-mesoscopic Josephson junction system can evolve to a squeezed state. A detailed analysis about the quantum fluctuation of the coupled system is given.
基金
theMinisterialLevelFoundation
