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Persistent single-photon production by tunable on-chip micromaser with a superconducting quantum circuit

J. Q. You·Yu-xi Liu·C. P. Sun·Franco Nori
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Abstract

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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J. Q. You, Yu-xi Liu, C. P. Sun, Franco Nori. 2005-12-18. Persistent single-photon production by tunable on-chip micromaser with a superconducting quantum circuit. https://doi.org/10.1103/physrevb.75.104516

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