论文标题
纠缠延迟到最初被人口量子的转移
Delayed transfer of entanglement to initially populated qubits
论文作者
论文摘要
研究了纠缠，量子相关的，飞行光子从挤压场到单模腔的转移。结果表明，虽然在输入挤压场打开挤压场之后，光子的传递开始了，但将量子相关性开始转移到空腔的时间很大程度上取决于腔的初始群体。对于最初的空腔，在打开挤压场后立即开始量子相关的转移，但是当腔最初填充腔时，它会延迟一定时间间隔。我们发现，量子相关性的转移被推迟，直到系统的单光子状态几乎完全人口减少。换句话说，该系统“等待”单光子状态的种群要腐烂，然后开始建立腔之间的量子相关性。延迟时间间隔独立于系统中最初存在的光子数量，但是它取决于腔的衰减速率，当腔衰减不同速率时，可以变化（控制）。结果表明，量子相关的延迟转移与量子跳跃的存在直接相关，量子跳跃的存在将种群从纠缠到不一致的混合物状态转移。
The transfer of entangled, quantum correlated, flying photons from a squeezed field to single-mode cavities is investigated. It is shown that, while the transfer of photons begins immediately after the input squeezed field is turned on, the time at which quantum correlations start to be transferred to the cavities is strongly dependent on the initial population of the cavities. For the initially empty cavities, the transfer of quantum correlations begins immediately after the squeezed field is turned on, but it is delayed by a certain time interval when the cavities are initially populated. We find that the transfer of the quantum correlations is postponed until the one-photon states of the system are almost completely depopulated. In other words, the system "waits" for the population of the single-photon states to decay out before starting to build up the quantum correlation between the cavities. The delay time interval is independent of the number of photons initially present in the system, but it is dependent on the decay rates of the cavities and can be varied (controlled) when the cavities decay with different rates. It is shown that the delayed transfer of the quantum correlation is directly related to the presence of quantum jumps, which transfer the population from the entangled to incoherent mixture states.
