单原子注入脉塞的电路QED模拟：激光、俘获态和多稳态
Circuit-QED analogue of a single-atom injection maser: Lasing, trapping states and multistability
摘要：
本文研究了一个超导单电子晶体管（SSET），它通过其中一个约瑟夫森结的相位差耦合到LC振荡器。这导致了SSET和振子之间的强非谐耦合。这种耦合可以随光子数的变化而振荡，这使得该系统非常类似于单原子注入脉塞。然而，基于超导电路的设计的优点是强耦合和存在标准方法来测量振荡器中的辐射场。这使得在电路量子电动力学装置中研究单原子注入脉塞的许多效应成为可能。
英文摘要：
We study a superconducting single-electron transistor (SSET) which is coupled to a LC-oscillator via the phase difference across one of the Josephson junctions. This leads to a strongly anharmonic coupling between the SSET and the oscillator. The coupling can oscillate with the number of photons which makes this system very similar to the single-atom injection maser. However, the advantage of a design based on superconducting circuits is the strong coupling and existence of standard methods to measure the radiation field in the oscillator. This makes it possible to study many effects that have been predicted for the single-atom injection maser in a circuit quantum electrodynamics setup.
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