论文标题
量子klystron-控制具有调制电子束的量子系统
A Quantum Klystron -- Controlling Quantum Systems with Modulated Electron Beams
论文作者
论文摘要
量子过渡的相干控制 - 量子技术中必不可少的 - 通常依赖于量子系统与电磁辐射的相互作用。在这里，我们从理论上证明了可以使用时间调制的自由空间电子束的非辐射电磁近场来进行量子系统的相干控制。我们表明，只能通过对电子束本身的经典控制来执行此类操作，并且可以通过当前技术很容易实现。这种方法可以通过纳米级空间分辨率为频谱选择性量子控制提供途径，从而利用电子的小型电子波长。
Coherent control of quantum transitions -- indispensable in quantum technology -- generally relies on the interaction of quantum systems with electromagnetic radiation. Here, we theoretically demonstrate that the non-radiative electromagnetic near-field of a temporally modulated free-space electron beam can be utilized for coherent control of quantum systems. We show that such manipulation can be performed with only classical control over the electron beam itself, and is readily realizable with current technology. This approach may provide a pathway towards spectrally selective quantum control with nano-scale spatial resolution, harnessing the small de Broglie wavelength of electrons.
