Discrete rotational symmetry and quantum-key-distribution protocols

David Shirokoff; Chi Hang Fred Fung; Hoi Kwong Lo

doi:10.1103/PhysRevA.75.032341

Discrete rotational symmetry and quantum-key-distribution protocols

David Shirokoff, Chi Hang Fred Fung, Hoi Kwong Lo

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We study the role of discrete rotational symmetry in the quantum key distribution by generalizing the well-known Bennett-Brassard 1984 and Scarani-Acin-Ribordy-Gisin 2004 protocols. We observe that discrete rotational symmetry results in the protocol's invariance to continuous rotations, thus leading to a simplified relation between bit and phase error rates and consequently a straightforward security proof.

Original language	English (US)
Article number	032341
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	75
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.75.032341
State	Published - Mar 28 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.75.032341

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AB - We study the role of discrete rotational symmetry in the quantum key distribution by generalizing the well-known Bennett-Brassard 1984 and Scarani-Acin-Ribordy-Gisin 2004 protocols. We observe that discrete rotational symmetry results in the protocol's invariance to continuous rotations, thus leading to a simplified relation between bit and phase error rates and consequently a straightforward security proof.

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Discrete rotational symmetry and quantum-key-distribution protocols

Abstract

All Science Journal Classification (ASJC) codes

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