Archivio Istituzionale della RicercaIn this manuscript, a composite channel model for quantum key distribution is considered, including both a “hard output” quantum channel and a “soft output” classic channel. The metrics derived from the two channels are jointly processed at the receiver, exploiting capacity achieving soft-metric based iteratively decoded block codes, and soft-information based information reconciliation and privacy amplification techniques are proposed. The performance of the proposed mixed-soft-metric algorithms is analyzed as a function of the system parameters.
Soft-processing for Information Reconciliation in QKD Applications / Mondin, Marina; Delgado, M.; Mesiti, Fabio; Daneshgaran, F.. - In: INTERNATIONAL JOURNAL OF QUANTUM INFORMATION. - ISSN 0219-7499. - STAMPA. - 9:supplementary issue 1(2011), pp. 155-164. [10.1142/S0219749911007174]
Soft-processing for Information Reconciliation in QKD Applications
MONDIN, Marina;MESITI, FABIO;
2011
Abstract
In this manuscript, a composite channel model for quantum key distribution is considered, including both a “hard output” quantum channel and a “soft output” classic channel. The metrics derived from the two channels are jointly processed at the receiver, exploiting capacity achieving soft-metric based iteratively decoded block codes, and soft-information based information reconciliation and privacy amplification techniques are proposed. The performance of the proposed mixed-soft-metric algorithms is analyzed as a function of the system parameters.
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https://hdl.handle.net/11583/2375121
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