Shaping quantum photonic states using free electrons.
Shaping quantum photonic states using free electrons.
复制标题
利用自由电子塑造量子光子态。
DOI：
10.1126/sciadv.abe4270
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发表时间：
2021-03
期刊：
影响因子：
13.6
通讯作者：
Kaminer I
中科院分区：
文献类型：
--
作者：
Ben Hayun A;Reinhardt O;Nemirovsky J;Karnieli A;Rivera N;Kaminer I
自由电子与光腔的相互作用使新的量子光子态的产生成为可能。创造具有独特量子特性的光，如压缩和纠缠，是一个长期的目标。我们提出利用自由电子相互作用产生量子光，超越了它们在产生经典光中已经无处不在的应用。这个概念是由电子显微镜的发展所激发的，电子显微镜最近证明了光子腔中量子自由电子与光的相互作用。这种电子显微镜通过明智地选择输入光和电子态，为形成光的量子态提供了平台。具体来说，我们展示了电子能量梳如何实现光子位移操作，创建位移fock和位移挤压态。我们发展了与公共腔的连续电子-腔相互作用的理论，并展示了如何产生任何目标Fock态。展望未来，利用电子、光及其相互作用的自由度，可能会实现对所产生光的量子态的完全控制，从而导致新的光统计和相关性。
The interactions of free electrons with optical cavities enable the creation of novel quantum photonic states. It is a long-standing goal to create light with unique quantum properties such as squeezing and entanglement. We propose the generation of quantum light using free-electron interactions, going beyond their already ubiquitous use in generating classical light. This concept is motivated by developments in electron microscopy, which recently demonstrated quantum free-electron interactions with light in photonic cavities. Such electron microscopes provide platforms for shaping quantum states of light through a judicious choice of the input light and electron states. Specifically, we show how electron energy combs implement photon displacement operations, creating displaced-Fock and displaced-squeezed states. We develop the theory for consecutive electron-cavity interactions with a common cavity and show how to generate any target Fock state. Looking forward, exploiting the degrees of freedom of electrons, light, and their interaction may achieve complete control over the quantum state of the generated light, leading to novel light statistics and correlations.