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23 April 2024 |
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Quantum interference between light sources separated by 150 million kilometers | | Yu-Hao Deng
; Hui Wang
; Xing Ding
; Z.-C. Duan
; Jian Qin
; M.-C. Chen
; Yu He
; Yu-Ming He
; Jin-Peng Li
; Yu-Huai Li
; Li-Chao Peng
; E. S. Matekole
; Tim Byrnes
; C. Schneider
; M. Kamp
; Da-Wei Wang
; Jonathan P. Dowling
; Sven Höfling
; Chao-Yang Lu
; Marlan O. Scully
; Jian-Wei Pan
; | | Date: |
8 May 2019 | | Abstract: | We report an experiment to test quantum interference, entanglement and
nonlocality using two dissimilar photon sources, the Sun and a semiconductor
quantum dot on the Earth, which are separated by 150 million kilometers. By
making the otherwise vastly distinct photons indistinguishable all degrees of
freedom, we observe time-resolved two-photon quantum interference with a raw
visibility of 0.796(17), well above the 0.5 classical limit, providing the
first evidence of quantum nature of thermal light. Further, using the photons
with no common history, we demonstrate post-selected two-photon entanglement
with a state fidelity of 0.826(24), and a violation of Bell’s inequality by
2.20(6). | | Source: | arXiv, 1905.2868 | | Services: | Forum | Review | PDF | Favorites | |
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