Entangled X-Ray Photon Pair Generation by Free-Electron Lasers

被引：0
|
作者：
Zhang L. [1 ]
Li Z. [1 ]
Liu D. [1 ,2 ]
Wu C. [1 ,3 ,4 ]
Xu H. [5 ,6 ,7 ]
Li Z. [1 ]
机构：
[1] State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing
[2] Physics Department, Stanford University, 94305, CA
[3] Collaborative Innovation Center of Extreme Optics, Shanxi University, Shanxi, Taiyuan
[4] Peking University, Yangtze Delta Institute of Optoelectronics, Jiangsu, Nantong
[5] School of Materials Science and Intelligent Engineering, Nanjing University, Jiangsu, Suzhou
[6] Shishan Laboratory, Nanjing University, Jiangsu, Suzhou
[7] School of Physical Sciences, University of Science and Technology of China, Anhui, Hefei
来源：
Physical Review Letters | 2023年 / 131卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Electron pulse - Entangled photon pairs - Free-electron lasers - Photon pairs - Photon pairs generations - Property - Quantum electrodynamical theory - X-rays photons;
D O I：
10.1103/PhysRevLett.131.073601
中图分类号：
学科分类号：
摘要：
We investigate entangled x-ray photon pair emissions in a free-electron laser (FEL) and establish a quantum electrodynamical theory for coherently amplified entangled photon pair emission from microbunched electron pulses in the undulator. We provide a scheme to generate highly entangled x-ray photon pairs and numerically demonstrate the properties of entangled emission, which is of great importance in x-ray quantum optics. Our work shows a unique advantage of FELs in entangled x-ray photon pair generation. © 2023 American Physical Society.
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