• Corpus ID: 252407499

LEO small satellite QKD downlink performance: QuantSat-PT case study

  title={LEO small satellite QKD downlink performance: QuantSat-PT case study},
  author={Vladlen Galetsky and Manfred Niehus},
In this work, we model and simulate the performance of a quantum key distribution (QKD) downlink from a low earth orbit (LEO) small satellite to an optical ground station (OGS), as integral part of the concept and preliminary design phase of the QuantSat-PT mission. By modelling and simulating in detail downlink transmission channel effects, with emphasis on turbulent and atmospheric losses for BB84 and E91 protocols, we find a consistent set of values for the performance envelope that resolves… 



A comprehensive design and performance analysis of low Earth orbit satellite quantum communication

Optical quantum communication utilizing satellite platforms has the potential to extend the reach of quantum key distribution (QKD) from terrestrial limits of ∼200 km to global scales. We have

Feasibility of satellite-to-ground continuous-variable quantum key distribution

This work examines the feasibility of establishing secret keys in a satellite-to-ground downlink configuration using continuous-variable encoding, which can be implemented using standard telecommunication components certified for space environment and able to operate at high symbol rates.

Satellite-to-ground quantum-limited communication using a 50-kg-class microsatellite

The recent rapid growth of satellite-constellation programmes for remote sensing and communications, enabled by the availability of small-sized and low-cost satellites, has provided impetus for the

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Quantum key distribution (QKD) is a cryptographic method enabling two parties to establish a private encryption key. The range of communication of ground-based QKD is limited to an order of 100km,

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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.

QUARC: Quantum Research Cubesat - A Constellation for Quantum Communication

This mission analysis presents the mission analysis showing how a constellation comprising 15 low-cost 6U CubeSats can be used to form a secure communication backbone for ground-based and metropolitan networks across the UK.

Satellite-to-ground quantum key distribution

This work reports the development and launch of a low-Earth-orbit satellite for implementing decoy-state QKD—a form ofQKD that uses weak coherent pulses at high channel loss and is secure because photon-number-splitting eavesdropping can be detected.

In-orbit verification of small optical transponder (SOTA): evaluation of satellite-to-ground laser communication links

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Link loss analysis for a satellite quantum communication down-link

The loss of a low-Earth orbit satellite-to-ground (downlink) quantum communication link is analyzed and the data of a known satellite quantum communications mission is compared, highlighting trade-offs in investment for satellite platform and optical ground station.

Atmospheric effects on continuous-variable quantum key distribution

Compared to fiber continuous-variable quantum key distribution (CVQKD), atmospheric link offers the possibility of a broader geographical coverage and more flexible transmission. However, there are