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Practical SARG04 quantum key distribution

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Abstract

We have presented a method to estimate parameters of the decoy state method based on one decoy state protocol for SARG04. This method has given lower bound of the fraction of single-photon counts (y 1), the fraction of two-photon counts (y 2), the upper bound QBER of single-photon pulses (e 1), the upper bound QBER of two-photon pulses (e 2), and the lower bound of key generation rate for both BB84 and SARG04. The numerical simulation has shown that the fiber based QKD and free space QKD systems using the proposed method for BB84 are able to achieve both a higher secret key rate and greater secure distance than that of SARG04. Also, it is shown that bidirectional ground to satellite and inter-satellite communications are possible with our protocol.

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Authors and Affiliations

  1. Department of Science in Engineering, Faculty of Engineering, International Islamic University Malaysia, 53100, Jalan Gombak, Kuala Lumpur, Malaysia

    Sellami Ali & M. S. H. Chowdhury

  2. Electrical Department, Faculty of Technology, Bejaia University, Bejaia, Algeria

    Sellami Mohammed

  3. Department of Electrical and Computer Engineering, Faculty of Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia

    Aisha A. Hasan

Authors
  1. Sellami Ali
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  2. Sellami Mohammed
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  3. M. S. H. Chowdhury
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  4. Aisha A. Hasan
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Correspondence to Sellami Ali.

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Ali, S., Mohammed, S., Chowdhury, M.S.H. et al. Practical SARG04 quantum key distribution. Opt Quant Electron 44, 471–482 (2012). https://doi.org/10.1007/s11082-012-9571-2

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  • DOI: https://doi.org/10.1007/s11082-012-9571-2

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