Efficient information reconciliation for high-dimensional quantum key distribution

Ronny Mueller; Domenico Ribezzo; Mujtaba Zahidy; Leif Katsuo Oxenløwe; Davide Bacco; Søren Forchhammer

doi:10.1007/s11128-024-04395-w

Efficient information reconciliation for high-dimensional quantum key distribution

Ronny Mueller^*, Domenico Ribezzo, Mujtaba Zahidy, Leif Katsuo Oxenløwe, Davide Bacco^*, Søren Forchhammer

^*Corresponding author for this work

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Abstract

The information reconciliation phase in quantum key distribution has significant impact on the range and throughput of any QKD system. We explore this stage for high-dimensional QKD implementations and introduce two novel methods for reconciliation. The methods are based on nonbinary LDPC codes and the Cascade algorithm, respectively, and achieve efficiencies close the Slepian–Wolf bound on q-ary symmetric channels.

Original language	English
Article number	195
Journal	Quantum Information Processing
Volume	23
Issue number	5
Number of pages	26
ISSN	1570-0755
DOIs	https://doi.org/10.1007/s11128-024-04395-w
Publication status	Published - May 2024

Keywords

Cascade
High-dimensional
Information reconciliation
LDPC
Quantum key distribution

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abstract = "The information reconciliation phase in quantum key distribution has significant impact on the range and throughput of any QKD system. We explore this stage for high-dimensional QKD implementations and introduce two novel methods for reconciliation. The methods are based on nonbinary LDPC codes and the Cascade algorithm, respectively, and achieve efficiencies close the Slepian–Wolf bound on q-ary symmetric channels.",

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AU - Zahidy, Mujtaba

AU - Oxenløwe, Leif Katsuo

AU - Bacco, Davide

AU - Forchhammer, Søren

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N2 - The information reconciliation phase in quantum key distribution has significant impact on the range and throughput of any QKD system. We explore this stage for high-dimensional QKD implementations and introduce two novel methods for reconciliation. The methods are based on nonbinary LDPC codes and the Cascade algorithm, respectively, and achieve efficiencies close the Slepian–Wolf bound on q-ary symmetric channels.

AB - The information reconciliation phase in quantum key distribution has significant impact on the range and throughput of any QKD system. We explore this stage for high-dimensional QKD implementations and introduce two novel methods for reconciliation. The methods are based on nonbinary LDPC codes and the Cascade algorithm, respectively, and achieve efficiencies close the Slepian–Wolf bound on q-ary symmetric channels.

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KW - Information reconciliation

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Efficient information reconciliation for high-dimensional quantum key distribution

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Keywords

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