期刊
SCIENCE ADVANCES
卷 7, 期 11, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.abe4270
关键词
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资金
- European Union [851780-ERC-NanoEP]
- Israel Science Foundation [830/19]
- Binational USA-Israel Science Foundation (BSF) [2018288]
- Israel Academy of Science and Humanities
The paper proposes generating quantum light using free-electron interactions, which can shape the quantum states of light through a selective choice of input light and electron states. By utilizing electron energy combs to implement photon displacement operations, such as creating displaced-Fock and displaced-squeezed states, complete control over the quantum state of generated light may be achieved in the future.
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.
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