超导量子线路可调谐片上微激射器的持续单光子产生
Persistent single-photon production by tunable on-chip micromaser with a superconducting quantum circuit
摘要：
提出了一种基于超导量子线路的可调谐片上微激射器。通过利用外部可控制的状态跃迁，可以实现状态布居反转，并且对于SQC的两个工作能级保持状态布居反转，并且当需要时，SQC可以生成单个光子。当先前在腔中产生的光子衰减时，我们可以在每个周期中定期重复这些过程，从而可以持续产生周期性的单光子序列。这为在微电子芯片上实现持久性单光子源提供了一种可控的方式。
英文摘要：
We propose a tunable on-chip micromaser using a superconducting quantum circuit (SQC). By taking advantage of externally controllable state transitions, a state population inversion can be achieved and preserved for the two working levels of the SQC and, when needed, the SQC can generate a single photon. We can regularly repeat these processes in each cycle when the previously generated photon in the cavity is decaying, so that a periodic sequence of single photons can be produced persistently. This provides a controllable way for implementing a persistent single-photon source on a microelectronic chip.
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