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

doi:10.1103/PhysRevLett.123.080401

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. ScullyJian-Wei Pan

Research output: Contribution to journal › Article › peer-review

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. With quantum erasure techniques applied to all degrees of freedom of the otherwise vastly distinct photons, 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). The experiment can be further extended to a larger scale using photons from distant stars, and open a new route to quantum optics experiments at an astronomical scale.

Original language	English
Article number	080401
Number of pages	7
Journal	Physical Review Letters
Volume	123
Issue number	8
Early online date	21 Aug 2019
DOIs	https://doi.org/10.1103/PhysRevLett.123.080401
Publication status	Published - 23 Aug 2019

Access to Document

10.1103/PhysRevLett.123.080401

PhysRevLett.123.080401
© 2019, American Physical Society. This work has been made available online in accordance with the publisher's policies. This is the final published version of the work, which was originally published at https://doi.org/10.1103/PhysRevLett.123.080401
Final published version, 988 KB

Cite this

Deng, Y.-H., Wang, H., Ding, X., Duan, Z.-C., Qin, J., Chen, M.-C., He, Y., He, Y.-M., Li, J.-P., Li, Y.-H., Peng, L.-C., Matekole, E. S., Byrnes, T., Schneider, C., Kamp, M., Wang, D.-W., Dowling, J. P., Höfling, S., Lu, C.-Y., ... Pan, J.-W. (2019). Quantum interference between light sources separated by 150 million kilometers. Physical Review Letters, 123(8), Article 080401. https://doi.org/10.1103/PhysRevLett.123.080401

@article{ab810dde465b45f59bebe1def04fe680,

title = "Quantum interference between light sources separated by 150 million kilometers",

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. With quantum erasure techniques applied to all degrees of freedom of the otherwise vastly distinct photons, 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{\textquoteright}s inequality by 2.20(6). The experiment can be further extended to a larger scale using photons from distant stars, and open a new route to quantum optics experiments at an astronomical scale.",

author = "Yu-Hao Deng and Hui Wang and Xing Ding and Z.-C. Duan and Jian Qin and M.-C. Chen and Yu He and Yu-Ming He and Jin-Peng Li and Yu-Huai Li and Li-Chao Peng and Matekole, {E. S.} and Tim Byrnes and C. Schneider and M. Kamp and Da-Wei Wang and Dowling, {Jonathan P.} and Sven H{\"o}fling and Chao-Yang Lu and Scully, {Marlan O.} and Jian-Wei Pan",

year = "2019",

month = aug,

day = "23",

doi = "10.1103/PhysRevLett.123.080401",

language = "English",

volume = "123",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

Deng, Y-H, Wang, H, Ding, X, Duan, Z-C, Qin, J, Chen, M-C, He, Y, He, Y-M, Li, J-P, Li, Y-H, Peng, L-C, Matekole, ES, Byrnes, T, Schneider, C, Kamp, M, Wang, D-W, Dowling, JP, Höfling, S, Lu, C-Y, Scully, MO & Pan, J-W 2019, 'Quantum interference between light sources separated by 150 million kilometers', Physical Review Letters, vol. 123, no. 8, 080401. https://doi.org/10.1103/PhysRevLett.123.080401

TY - JOUR

T1 - Quantum interference between light sources separated by 150 million kilometers

AU - Deng, Yu-Hao

AU - Wang, Hui

AU - Ding, Xing

AU - Duan, Z.-C.

AU - Qin, Jian

AU - Chen, M.-C.

AU - He, Yu

AU - He, Yu-Ming

AU - Li, Jin-Peng

AU - Li, Yu-Huai

AU - Peng, Li-Chao

AU - Matekole, E. S.

AU - Byrnes, Tim

AU - Schneider, C.

AU - Kamp, M.

AU - Wang, Da-Wei

AU - Dowling, Jonathan P.

AU - Höfling, Sven

AU - Lu, Chao-Yang

AU - Scully, Marlan O.

AU - Pan, Jian-Wei

PY - 2019/8/23

Y1 - 2019/8/23

N2 - 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. With quantum erasure techniques applied to all degrees of freedom of the otherwise vastly distinct photons, 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). The experiment can be further extended to a larger scale using photons from distant stars, and open a new route to quantum optics experiments at an astronomical scale.

AB - 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. With quantum erasure techniques applied to all degrees of freedom of the otherwise vastly distinct photons, 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). The experiment can be further extended to a larger scale using photons from distant stars, and open a new route to quantum optics experiments at an astronomical scale.

U2 - 10.1103/PhysRevLett.123.080401

DO - 10.1103/PhysRevLett.123.080401

M3 - Article

SN - 0031-9007

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 080401

ER -

Quantum interference between light sources separated by 150 million kilometers

Abstract

Access to Document

Fingerprint

Cite this