Franson Interference Generated by a Two-Level System

被引：35
|
作者：
Peiris, M. [1 ]
Konthasinghe, K. [1 ]
Muller, A. [1 ]
机构：
[1] Univ S Florida, Dept Phys, Tampa, FL 33620 USA
来源：
PHYSICAL REVIEW LETTERS | 2017年 / 118卷 / 03期
基金：
美国国家科学基金会;
关键词：
RESONANCE FLUORESCENCE TRIPLET; ENTANGLED PHOTONS; QUANTUM CRYPTOGRAPHY; BELL INEQUALITY; EXPERIMENTAL REALIZATION; SIDE-BAND; TIME; STATE; VIOLATION; DOT;
D O I：
10.1103/PhysRevLett.118.030501
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report a Franson interferometry experiment based on correlated photon pairs generated via frequency-filtered scattered light from a near-resonantly driven two-level semiconductor quantum dot. In contrast to spontaneous parametric down-conversion and four-wave mixing, this approach can produce single pairs of correlated photons. We have measured a Franson visibility as high as 66%, which goes beyond the classical limit of 50% and approaches the limit of violation of Bell's inequalities (70.7%).
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页数：5
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