Boosting the Quantum State of a Cavity with Floquet Driving
Boosting the Quantum State of a Cavity with Floquet Driving
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DOI：
10.1103/physrevlett.128.183602
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发表时间：
2022-05-04
影响因子：
8.6
通讯作者：
Chandran, Anushya
中科院分区：
文献类型：
--
作者：
Long, David M.;Crowley, Philip J. D.;Chandran, Anushya
腔 QED 系统表现出的惊人非线性效应使其成为现代凝聚态和原子物理学的强大工具。最近发现的一个例子是通过强耦合、周期性驱动的自旋将能量量子化泵入空腔。我们发现了这些能量泵的一个显着特征：它们在福克基础上一致地转换或增强了腔的量子态。目前的光学腔和电路QED实验可以在旋转框架中实现所需的哈密顿量。因此，增强能够在近期实验中制备高度激发的非经典腔态。
The striking nonlinear effects exhibited by cavity QED systems make them a powerful tool in modern condensed matter and atomic physics. A recently discovered example is the quantized pumping of energy into a cavity by a strongly coupled, periodically driven spin. We uncover a remarkable feature of these energy pumps: they coherently translate, or boost, a quantum state of the cavity in the Fock basis. Current optical cavity and circuit QED experiments can realize the required Hamiltonian in a rotating frame. Boosting thus enables the preparation of highly excited nonclassical cavity states in near-term experiments.