| Literature DB >> 31841348 |
Zhao-Chen Duan1,2, Yu-Hao Deng1,2, Ying Yu3, Si Chen1,2, Jian Qin1,2, Hui Wang1,2, Xing Ding1,2, Li-Chao Peng1,2, Christian Schneider4, Da-Wei Wang5, Sven Höfling1,4,6, Jonathan P Dowling1,7,8, Chao-Yang Lu1,2, Jian-Wei Pan1,2.
Abstract
We demonstrate fourth-order quantum beat between sunlight and single photons from a quantum dot. With a fast time-resolved detection system, we observed high-visibility quantum beat between the independent photons of different frequencies from the two astronomically separated light sources. The temporal dynamics of the beat oscillation indicate the coherent behavior of the interfering photons, and the raw visibility of two-photon interference shows violation of the classical limit with a frequency mismatch of three-times the line width.Keywords: Quantum dots; fourth-order interference; quantum beat; quantum information processing; single photons
Year: 2019 PMID： 31841348 DOI： 10.1021/acs.nanolett.9b03512
Source DB: PubMed Journal: Nano Lett ISSN： 1530-6984 Impact factor: 11.189