Quantum-enabled temporal and spectral mode conversion of microwave signals.
Quantum-enabled temporal and spectral mode conversion of microwave signals.
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DOI：
10.1038/ncomms10021
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发表时间：
2015-11-30
影响因子：
16.6
通讯作者：
Lehnert KW
中科院分区：
文献类型：
--
作者：
Andrews RW;Reed AP;Cicak K;Teufel JD;Lehnert KW
电磁波是在量子网络中传输信息的理想候选者，因为它们可以使用光纤或微波电缆在位置之间快速有效地路由。然而，将量子设备与电缆连接起来已经被证明是困难的，因为大多数用于量子信息处理的腔或电路量子电动力学系统只能吸收和发射具有特定频率和时间包络的信号。在这里，我们表明，微波频率的电磁信号的时间和频谱内容可以任意操纵嵌入在微波电路中的灵活的铝鼓面。铝鼓面同时形成一个机械振荡器和一个可调谐电容器。该设备提供了一种使用单独或不匹配的组件构建量子微波网络的方法。此外，它将通过捕获由最相干的电路量子电动力学系统制备的非经典微波信号来制备非经典运动状态。 腔QED系统可以吸收或发射具有特定频率和时间间隔的信号，可用于量子信息处理。在这里，作者表明，微波信号的时间和频谱内容可以用嵌入电路中的柔性铝鼓面来操纵。
Electromagnetic waves are ideal candidates for transmitting information in a quantum network as they can be routed rapidly and efficiently between locations using optical fibres or microwave cables. Yet linking quantum-enabled devices with cables has proved difficult because most cavity or circuit quantum electrodynamics systems used in quantum information processing can only absorb and emit signals with a specific frequency and temporal envelope. Here we show that the temporal and spectral content of microwave-frequency electromagnetic signals can be arbitrarily manipulated with a flexible aluminium drumhead embedded in a microwave circuit. The aluminium drumhead simultaneously forms a mechanical oscillator and a tunable capacitor. This device offers a way to build quantum microwave networks using separate and otherwise mismatched components. Furthermore, it will enable the preparation of non-classical states of motion by capturing non-classical microwave signals prepared by the most coherent circuit quantum electrodynamics systems. Cavity QED systems which can be used for quantum information processing can absorb or emit signals with specific frequencies and temporal envelops. Here, the authors show that the temporal and spectral content of microwave signals can be manipulated with a flexible aluminium drumhead embedded in a circuit.