Satellite-based entanglement distribution over 1200 kilometers

@article{Yin2017SatellitebasedED,
  title={Satellite-based entanglement distribution over 1200 kilometers},
  author={Juan Yin and Yuan Cao and Yu-Huai Li and Shengkai Liao and Liang Zhang and Ji-Gang Ren and Wenqi Cai and Wei-Yue Liu and Bo Li and Hui Dai and Guang-Bing Li and Qiming Lu and Yun-Hong Gong and Yu Xu and Shuang-Lin Li and Feng-Zhi Li and Ya-Yun Yin and Zi-Qing Jiang and Ming Li and Jianjun Jia and Ge Ren and Dong He and Yi‐Lin Zhou and Xiao-Xiang Zhang and Na Wang and Xiang-Ke Chang and Zhen-Cai Zhu and Nai-Le Liu and Yu-Ao Chen and Chaoyang Lu and Rong Shu and Cheng-Zhi Peng and Jian-Yu Wang and Jian-Wei Pan},
  journal={Science},
  year={2017},
  volume={356},
  pages={1140 - 1144}
}
Entangled photons are distributed over vast distances using a satellite-to-ground link. Space calling Earth, on the quantum line A successful quantum communication network will rely on the ability to distribute entangled photons over large distances between receiver stations. So far, free-space demonstrations have been limited to line-of-sight links across cities or between mountaintops. Scattering and coherence decay have limited the link separations to around 100 km. Yin et al. used the… Expand
Quantum Key Distribution and Entanglement Distribution with Satellite Links
The efficient distribution of quantum states over global distances constitutes a key challenge in the implementation of quantum communication protocols. While direct transmission through opticalExpand
Drone-based entanglement distribution towards mobile quantum networks
TLDR
This work demonstrates the first mobile entanglement distribution based on drones, realizing multi-weather operation including daytime and rainy nights, and reveals its potential to establish a multinode quantum network, with a scalable design using symmetrical lens diameter and single-mode-fiber coupling. Expand
Satellite-based links for quantum key distribution: beam effects and weather dependence
TLDR
This work aims at giving a comprehensive and fundamental model for the losses suffered by the quantum signals during the propagation along an atmospheric free-space link, and a performance analysis of different Quantum Key Distribution (QKD) implementations is performed, including finite-key effects. Expand
Drone-based all-weather entanglement distribution
The quantum satellite is a cornerstone towards practical free-space quantum network and overcomes the photon loss over large distance. However, challenges still exist including real-time all-locationExpand
Sub-ns timing accuracy for satellite quantum communications
TLDR
An experiment is reported with regard to achieving a temporal accuracy of approximately 230 ps in the detection of an optical signal of few photons per pulse reflected by satellites in medium Earth orbit, at a distance exceeding 7500 km, by using commercially available detectors. Expand
Polarization design for ground-to-satellite quantum entanglement distribution.
TLDR
A high-fidelity polarization design of a transmitting antenna with an average polarization extinction ratio of 887:1 is described and a feasible polarization-compensation scheme for satellite motions with a fidelity exceeding 0.995 ± 0.001 is implemented. Expand
Spooky Action at a Global Distance $-$ Resource-Rate Analysis of a Space-Based Entanglement-Distribution Network for the Quantum Internet
TLDR
This work proposes a global-scale quantum internet consisting of a constellation of orbiting satellites that provides a continuous on-demand entanglement distribution service to ground stations and determines the optimal resource cost of such a network for obtaining continuous global coverage. Expand
Polarization design for ground-to-satellite quantum entanglement distribution
High-fidelity transmission of polarization encoded qubits plays a key role in long distance quantum communication. By establishing the channel between ground and satellite, the communication distanceExpand
Bell Test over Extremely High-Loss Channels: Towards Distributing Entangled Photon Pairs between Earth and the Moon.
TLDR
This work develops an entangled photon source with 1 GHz generation rate, about 2 orders of magnitude higher than previous results, and develops a proof-of-principle experiment, demonstrating the feasibility of such long-distance Bell test over extremely high-loss channels. Expand
Towards quantum communication from global navigation satellite system
TLDR
This report reports on the first experimental exchange of single photons from Global Navigation Satellite System at a slant distance of 20000 kilometers, by exploiting the retroreflector array mounted on GLONASS satellites, and the predicted temporal spread of the reflected pulses due to the geometrical shape of array. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 36 REFERENCES
Quantum teleportation and entanglement distribution over 100-kilometre free-space channels
TLDR
The high-frequency and high-accuracy acquiring, pointing and tracking technique developed in this experiment can be directly used for future satellite-based quantum communication and large-scale tests of quantum foundations. Expand
Experimental free-space distribution of entangled photon pairs over 13 km: towards satellite-based global quantum communication.
TLDR
The distributed entangled photon source is exploited to demonstrate the Bennett-Brassard 1984 quantum cryptography scheme and the distribution distance achieved is for the first time well beyond the effective thickness of the aerosphere, hence presenting a significant step towards satellite-based global quantum communication. Expand
Entanglement purification for quantum communication
TLDR
This work presents a scheme for the entanglement purification of general mixed entangled states, which achieves 50 per cent of the success probability of schemes based on the CNOT operation, but requires only simple linear optical elements. Expand
Observation of entanglement between a single trapped atom and a single photon
TLDR
The direct observation of entanglement between stationary and ‘flying’ qubits is accomplished without using cavity quantum electrodynamic techniques or prepared non-classical light sources and it is envisioned that this source of entangling may be used for a variety of quantum communication protocols and for seeding large-scale entangled states of trapped ion qubits for scalable quantum computing. Expand
Experimental entanglement purification of arbitrary unknown states
TLDR
In these experiments, decoherence is overcome to the extent that the technique would achieve tolerable error rates for quantum repeaters in long-distance quantum communication and the requirement of high-accuracy logic operations in fault-tolerant quantum computation can be considerably relaxed. Expand
Experimental demonstration of a BDCZ quantum repeater node
TLDR
This work realizes entanglement swapping with storage and retrieval of light, a building block of the BDCZ quantum repeater, and establishes the essential element needed to realize quantum repeaters with stationary atomic qu bits as quantum memories and flying photonic qubits as quantum messengers. Expand
Long-Distance Free-Space Distribution of Quantum Entanglement
We demonstrate the distribution of quantum entanglement via optical free-space links to independent receivers separated by 600 m, with no line of sight between each other. A Bell inequality betweenExpand
Functional Quantum Nodes for Entanglement Distribution over Scalable Quantum Networks
TLDR
The demonstrated quantum nodes and channels can be used as segments of a quantum repeater, providing an essential tool for robust long-distance quantum communication. Expand
Long-distance quantum communication with atomic ensembles and linear optics
TLDR
It is shown that the communication efficiency scales polynomially with the channel length, and hence the scheme should be operable over very long distances. Expand
Measurement-Device-Independent Quantum Key Distribution Over a 404 km Optical Fiber.
TLDR
This record-breaking implementation of the MDIQKD method provides a new distance record and achieves a distance that the traditional Bennett-Brassard 1984 QKD would not be able to achieve with the same detection devices even with ideal single-photon sources. Expand
...
1
2
3
4
...