对介观叠加态可逆退相干响应的研究

Study on Responce in the Reversible Decoherence of a Mesoscopoic Superposed State

将描述薛定谔猫相态的可逆退相干模型进行推广:先让两个都处于薛定谔猫相态的高Q量子腔C1和C2相互耦合,再让C2与一个处于空态的量子腔C3相耦合,并发现此时C2腔中的薛定谔猫相态可逆退相干的响应速度加快,且可逆退相干的发生周期与腔之间的耦合系数有关.

An experiment, a high- Q cavity C2 coupled to a ＂reservoir＂ cavity C1, is proposed to describe the reversible decoher- ence of a phase cat state. In this paper, we extend the model：the high- Q cavity C1 in the phase cat state is coupled to another high- Q cavity C2 also in the phase cat state, and C2 is coupled to a cavity C3 as a ＂reservoir＂. At this time, the responding speed of decoherence of the Sehrodinger cat state in cavity C2 becomes faster. The period of the occurrence of the reversible decoherenee is related to the couoling constant between the cavities.