Entanglements of Electrons and Cavity Photons in the Strong-Coupling Regime

被引：109
|
作者：
Kfir, Ofer [1 ]
机构：
[1] Univ Gottingen, Phys Inst 4, D-37077 Gottingen, Germany
来源：
PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 10期
基金：
欧盟地平线“2020”;
关键词：
PLASMONS; SURFACE; MICROSCOPY; INEQUALITY; RADIATION; COHERENT; MODES;
D O I：
10.1103/PhysRevLett.123.103602
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This Letter sets a road map towards an experimental realization of strong coupling between free electrons and photons and analytically explores entanglement phenomena that emerge in this regime. The proposed model unifies the strong-coupling predictions with known electron-photon interactions. Additionally, this Letter predicts a non-Columbic entanglement between freely propagating electrons. Since strong coupling can map entanglements between photon pairs onto photon-electron pairs, it may harness electron beams for quantum communication, thus far exclusive to photons.
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页数：6
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