Satellite-Relayed Intercontinental Quantum Network.

  title={Satellite-Relayed Intercontinental Quantum Network.},
  author={Shengkai Liao and Wenqi Cai and Johannes Handsteiner and Bo Liu and Juan Yin and Liang Zhang and Dominik Rauch and Matthias Fink and Ji-Gang Ren and Weiyue Liu and Yang Li and Qi Shen and Yuan Cao and Feng-Zhi Li and Jian-Feng Wang and Yong-mei Huang and Lei Deng and Tao Xi and Lu Ma and Tai Hu and Li Li and Nai-Le Liu and Franz Koidl and Peiyuan Wang and Yu-Ao Chen and Xiang‐Bin Wang and Michael A. Steindorfer and Georg Kirchner and Chaoyang Lu and Rong Shu and Rupert Ursin and Thomas Scheidl and Cheng-Zhi Peng and Jian-Yu Wang and Anton Zeilinger and Jian-Wei Pan},
  journal={Physical review letters},
  volume={120 3},
We perform decoy-state quantum key distribution between a low-Earth-orbit satellite and multiple ground stations located in Xinglong, Nanshan, and Graz, which establish satellite-to-ground secure keys with ∼kHz rate per passage of the satellite Micius over a ground station. The satellite thus establishes a secure key between itself and, say, Xinglong, and another key between itself and, say, Graz. Then, upon request from the ground command, Micius acts as a trusted relay. It performs bitwise… 

Satellite-relayed intercontinental quantum network

This thesis shows that quantum communication could be an ideal method to realize encrypted communication, although the thesis is only based on the simulation of the satellite-relayed quantum network and the channel noise still destroys some part of the decoded picture, thus more practical testing should be done to confirm this theory and some advanced methods should be used to reduce theChannel noise.

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A quantum key distribution (QKD) system with relay satellite for communication between two distant Earth-based parties, Alice and Bob, and concludes on the attractiveness and feasibility of satellite relay QKD.

Resource allocation in a Quantum Key Distribution Network with LEO and GEO trusted-repeaters

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A quantum receiving module, installed at the Satellite Laser Ranging Station in Graz (Austria) capable of implementing the so-called decoy-state QKD protocol in a downlink scenario from the LEO satellite “Micius” is reported on.

LEO Satellites Constellation-to-Ground QKD Links: Greek Quantum Communication Infrastructure Paradigm

Quantum key distribution (QKD) has gained a lot of attention over the past few years, but the implementation of quantum security applications is still challenging to accomplish with the current

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Exploiting potentialities for space-based quantum communication network: downlink quantum key distribution modelling and scheduling analysis

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A novel aperiodic synchronization scheme that can achieve high-precision time synchronization by encoding time information into pseudo-random laser pulse positions is proposed, resulting in a synchronization precision of 208-222 ps even when 90% of the light signals are lost.

Approaches to scheduling satellite-based quantum key distribution for the quantum network

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Metropolitan all-pass and inter-city quantum communication network.

Real-time voice telephone with one-time pad encoding between any two of the five nodes (four all-pass nodes plus one additional node through relay) is successfully established in the network within 60 km.

Satellite-to-ground quantum key distribution

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Airborne demonstration of a quantum key distribution receiver payload

  • C. J. PughSarah Kaiser T. Jennewein
  • Physics
    2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
  • 2017
This work presents the first successful demonstration of QKD to a receiver on a moving aircraft.

Satellite-based entanglement distribution over 1200 kilometers

Satellite-based distribution of entangled photon pairs to two locations separated by 1203 kilometers on Earth, through two satellite-to-ground downlinks is demonstrated, with a survival of two-photon entanglement and a violation of Bell inequality.

Long-distance free-space quantum key distribution in daylight towards inter-satellite communication

In the past, long-distance free-space quantum communication experiments could only be implemented at night. During the daytime, the bright background sunlight prohibits quantum communication in

Long-distance quantum key distribution in optical fibre

  • D. RosenbergC. G. Peterson S. Nam
  • Physics
    OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference
  • 2008
Use of low-noise detectors can both increase the secret bit rate of long-distance quantum key distribution (QKD) and dramatically extend the length of a fibre optic link over which secure keys can be

Free-Space distribution of entanglement and single photons over 144 km

Quantum Entanglement is the essence of quantum physics and inspires fundamental questions about the principles of nature. Moreover it is also the basis for emerging technologies of quantum

Experimental long-distance decoy-state quantum key distribution based on polarization encoding.

The decoy-state quantum key distribution (QKD) with one-way quantum communication in polarization space over 102 km is demonstrated and can really offer the unconditionally secure final keys.

Ground to satellite secure key exchange using quantum cryptography

There are no technical obstacles to building a system that could exchange keys at kilobaud rates between a metre diameter telescope on the ground and a satellite with a 10 cm diameter lightweight telescope, according to the study.

Measurement-Device-Independent Quantum Key Distribution Over a 404 km Optical Fiber.

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.