Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers

Research Article

Feasibility Analysis for Quantum Key Distribution between a LEO Satellite and Earth

Download
436 downloads
  • @INPROCEEDINGS{10.1007/978-3-642-11731-2_12,
        author={C. Bonato and A. Tomaello and V. Deppo and G. Naletto and P. Villoresi},
        title={Feasibility Analysis for Quantum Key Distribution between a LEO Satellite and Earth},
        proceedings={Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers},
        proceedings_a={QUANTUMCOMM},
        year={2012},
        month={10},
        keywords={},
        doi={10.1007/978-3-642-11731-2_12}
    }
    
  • C. Bonato
    A. Tomaello
    V. Deppo
    G. Naletto
    P. Villoresi
    Year: 2012
    Feasibility Analysis for Quantum Key Distribution between a LEO Satellite and Earth
    QUANTUMCOMM
    Springer
    DOI: 10.1007/978-3-642-11731-2_12
C. Bonato,*, A. Tomaello1,*, V. Deppo1, G. Naletto1, P. Villoresi1,*
  • 1: University of Padova, Italy, CNR-INFM LUXOR Laboratory for Ultraviolet and X-ray
*Contact email: bonato@molphys.leidenuniv.nl, tomaello@dei.unipd.it, paolo.villoresi@dei.unipd.it

Abstract

Terrestrial QKD channels can connect two links with a maximum distance of few hundred kilometres. In the case of fibre links, this is due to the signal attenuation in the fibre; in the case of free-space link the losses are due to atmospheric turbulence and absorption. Free-space optical terminals exploiting satellite-based relays are the only resource that can enable global scale quantum key distribution, since single photon propagation is for the main part in vacuum with no turbulence or absorption, and just a small part of the path is through the atmosphere. Several proof-of-principle experiments have been carried out recently: among these the feasibility of single-photon exchange between a satellite and an optical ground station was demonstrated in 2008 [1].