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Key rate estimation of measurement-device-independent quantum key distribution protocol in satellite-earth and intersatellite links

Ahmed Ismael Khaleel

http://orcid.org/0000-0001-7635-353X

Institute of Laser for Postgraduate Studies, University of Baghdad, Baghdad, Iraq

E-mail Address: ahmed@ilps.uobaghdad.edu.iq

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and

Shelan Khasro Tawfeeq

Institute of Laser for Postgraduate Studies, University of Baghdad, Baghdad, Iraq

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https://doi.org/10.1142/S0219749918500272Cited by:5 (Source: Crossref)

Abstract

In this work, an estimation of the key rate of measurement-device-independent quantum key distribution (MDI-QKD) protocol in free space was performed. The examined free space links included satellite-earth downlink, uplink and intersatellite link. Various attenuation effects were considered such as diffraction, atmosphere, turbulence and the efficiency of the detection system. Two cases were tested: asymptotic case with infinite number of decoy states and one-decoy state case. The estimated key rate showed the possibility of applying MDI-QKD in earth-satellite and intersatellite links, offering longer single link distance to be covered.

Keywords:

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