Decoy-state protocol for quantum cryptography with four different intensities of coherent light

Xiang-Bin Wang

Phys. Rev. A 72, 012322 – Published 20 July 2005; Erratum Phys. Rev. A 72, 049908 (2005)

Abstract

We propose an efficient decoy-state protocol for practical quantum key distribution using coherent states. The protocol uses four intensities of different coherent light. A good final key rate is achieved by our protocol with typical parameters of existing practical setups, even with a very low channel transmittance.

Received 2 March 2005

DOI:https://doi.org/10.1103/PhysRevA.72.012322

Erratum

Erratum: Decoy-state protocol for quantum cryptography with four different intensities of coherent light [Phys. Rev. A 72, 012322 (2005)]

Xiang-Bin Wang

Phys. Rev. A 72, 049908 (2005)

Authors & Affiliations

Xiang-Bin Wang^*

IMAI Quantum Computation and Information Project, ERATO, JST, Daini Hongo White Bldg. 201, 5-28-3, Hongo, Bunkyo, Tokyo 133-0033, Japan

^*Email address: wang@qci.jst.go.jp

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Vol. 72, Iss. 1 — July 2005

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Physical Review A

covering atomic, molecular, and optical physics and quantum information

Decoy-state protocol for quantum cryptography with four different intensities of coherent light

Xiang-Bin Wang

Phys. Rev. A 72, 012322 – Published 20 July 2005; Erratum Phys. Rev. A 72, 049908 (2005)

Abstract

Erratum

Erratum: Decoy-state protocol for quantum cryptography with four different intensities of coherent light [Phys. Rev. A 72, 012322 (2005)]

Xiang-Bin Wang

Phys. Rev. A 72, 049908 (2005)

Authors & Affiliations

Article Text (Subscription Required)

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Physical Review A

covering atomic, molecular, and optical physics and quantum information

Decoy-state protocol for quantum cryptography with four different intensities of coherent light

Xiang-Bin Wang

Phys. Rev. A 72, 012322 – Published 20 July 2005; Erratum Phys. Rev. A 72, 049908 (2005)

Abstract

Erratum

Erratum: Decoy-state protocol for quantum cryptography with four different intensities of coherent light [Phys. Rev. A 72, 012322 (2005)]

Xiang-Bin Wang

Phys. Rev. A 72, 049908 (2005)

Authors & Affiliations

Article Text (Subscription Required)

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