【摘要】 讨论了强度耦合下二能级原子的三光子激发 ,发现原子所处的理想的光腔内光子数涨落的永久性崩塌与复活现象 ,腔内场的熵从细节上表现了场反复回到其初始状态而与原子反复纠缠和解纠缠的过程。更多还原

【Abstract】 This paper discusses a single two-level atom stimulated by three-photon process in a high-intensity cavity and finds permanently collapse and revival of the fluctuation of the photon number in the cavity. This will be manifestly showed by the evolution of entropy of the cavity field in detail. On this condition, we notice that the field will frequently go back to pure state from mixed state (or entangle and disentangle with the atom in the cavity) even for a long time (suppose no energy dissipation).更多还原