论文标题
在Josephson-Photonics电路中具有两个非排效微波谐振器的光子对封锁
Photon-pair blockade in a Josephson-photonics circuit with two nondegenerate microwave resonators
论文作者
论文摘要
我们建议在约瑟夫森 - 光子学电路中产生光子对封锁，该电路由串联的直流电压偏置的约瑟夫森交界处组成，其中具有超导电荷矩矩形和两个非排定微波谐波谐振器。两级电荷值用于产生电荷运输的反相关。也就是说，抑制了同时的库珀对隧道事件。当约瑟夫森频率匹配电荷量子置换量和两个谐振器的共振频率的总和时，我们证明了两个谐振器可以以两个强相关光子的抗挡板对形式释放其能量。目前的工作提供了一种实用的方法，可以生产明亮的微波抗光光对源，其潜在应用从光谱和计量学到量子信息处理。
We propose to generate photon-pair blockade in a Josephson-photonics circuit that consists of a dc voltage-biased Josephson junction in series with a superconducting charge qubit and two nondegenerate microwave resonators. The two-level charge qubit is utilized to create anticorrelations of the charge transport; that is, the simultaneous Cooper pair tunneling events are inhibited. When the Josephson frequency matches the sum of resonance frequencies of the charge qubit and the two resonators, we demonstrate that the two resonators can release their energies in the form of antibunched pairs of two strongly correlated photons. The present work provides a practical way for producing a bright microwave source of antibunched photon pairs, with potential applications ranging from spectroscopy and metrology to quantum information processing.
