论文标题
微波的确定性加载和相塑形在单个人造原子上
Deterministic loading and phase shaping of microwaves onto a single artificial atom
论文作者
论文摘要
确定性地加载量子信息到量子节点是迈向量子网络的重要步骤。在这里，我们证明具有最佳时间波形的一致状态微波光子可以在半侵入一维（1D）传输线波导中有效地加载到单个超导的人造原子上。使用弱相干状态（平均光子数n << 1具有指数上升的波形，其时间持续与人造原子的变质时间相匹配，我们证明了从1D半半空间到人工原子的负载效率高于94％的94％。我们还显示了Fock-State Microlowave光子可以确定的效率。令人兴奋的是原子，使我们的结果相干控制。
Loading quantum information deterministically onto a quantum node is an important step towards a quantum network. Here, we demonstrate that coherent-state microwave photons, with an optimal temporal waveform, can be efficiently loaded onto a single superconducting artificial atom in a semi-infinite one-dimensional (1D) transmission-line waveguide. Using a weak coherent state (average photon number N<<1 with an exponentially rising waveform, whose time constant matches the decoherence time of the artificial atom, we demonstrate a loading efficiency of above 94% from 1D semi-free space to the artificial atom. We also show that Fock-state microwave photons can be deterministically loaded with an efficiency of 98.5%. We further manipulate the phase of the coherent state exciting the atom, enabling coherent control of the loading process. Our results open up promising applications in realizing quantum networks based on waveguide quantum electrodynamics (QED).
