论文标题
从绝热到量子电路的分散读数
From adiabatic to dispersive readout of quantum circuits
论文作者
论文摘要
通过监视其在与之耦合的微波谐振器中诱导的谐振频率移动来有效地读取量子电路的光谱性能。当两个系统严重失调时，理论将转移归因于取决于量子电路状态的有效谐振电容或电感。在小的失调时，这种转移源于Jaynes-Cummings模型的描述，源于虚拟光子的交换。在这里，我们提出了一个理论，桥接了这两个限制，并提供了几个示例，其必要是对量子电路读数的一般描述。
Spectral properties of a quantum circuit are efficiently read out by monitoring the resonance frequency shift it induces in a microwave resonator coupled to it. When the two systems are strongly detuned, theory attributes the shift to an effective resonator capacitance or inductance that depends on the quantum circuit state. At small detuning, the shift arises from the exchange of virtual photons, as described by the Jaynes-Cummings model. Here we present a theory bridging these two limits and illustrate, with several examples, its necessity for a general description of quantum circuits readout.
