Efficient quantum key distribution over a collective noise channel
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- 13 August 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 78 (2), 022321
- https://doi.org/10.1103/physreva.78.022321
Abstract
We present two efficient quantum key distribution schemes over two different collective-noise channels. The accepted hypothesis of collective noise is that photons travel inside a time window small compared to the variation of noise. Noiseless subspaces are made up of two Bell states and the spatial degree of freedom is introduced to form two nonorthogonal bases. Although these protocols resort to entangled states for encoding the key bit, the receiver is only required to perform single-particle product measurements and there is no basis mismatch. Moreover, the detection is passive as the receiver does not switch his measurements between two conjugate measurement bases to get the key.Keywords
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This publication has 28 references indexed in Scilit:
- Bidirectional quantum key distribution protocol with practical faint laser pulsesPhysical Review A, 2004
- Efficient Quantum Key Distribution Scheme and a Proof of Its Unconditional SecurityJournal of Cryptology, 2004
- Controlled order rearrangement encryption for quantum key distributionPhysical Review A, 2003
- Quantum Key Distribution with High Loss: Toward Global Secure CommunicationPhysical Review Letters, 2003
- A step towards global key distributionNature, 2002
- Quantum cryptographyReviews of Modern Physics, 2002
- Theoretically efficient high-capacity quantum-key-distribution schemePhysical Review A, 2002
- Quantum cryptography using any two nonorthogonal statesPhysical Review Letters, 1992
- Quantum cryptography without Bell’s theoremPhysical Review Letters, 1992
- Quantum cryptography based on Bell’s theoremPhysical Review Letters, 1991