Quantum Cryptography without Switching

Christian Weedbrook; Andrew M. Lance; Warwick P. Bowen; Thomas Symul; Timothy C. Ralph; Ping Koy Lam

doi:10.1103/PhysRevLett.93.170504

Quantum Cryptography without Switching

Christian Weedbrook, Andrew M. Lance, Warwick P. Bowen, Thomas Symul, Timothy C. Ralph, Ping Koy Lam

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

419 Citations (Scopus)

Abstract

We propose a new coherent state quantum key distribution protocol that eliminates the need to randomly switch between measurement bases. This protocol provides significantly higher secret key rates with increased bandwidths than previous schemes that only make single quadrature measurements. It also offers the further advantage of simplicity compared to all previous protocols which, to date, have relied on switching.

Original language	Undefined/Unknown
Article number	170504
Number of pages	4
Journal	Physical Review Letters
Volume	93
DOIs	https://doi.org/10.1103/PhysRevLett.93.170504
Publication status	Published - 22 Oct 2004
Externally published	Yes

Access to Document

10.1103/PhysRevLett.93.170504

Cite this

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abstract = " We propose a new coherent state quantum key distribution protocol that eliminates the need to randomly switch between measurement bases. This protocol provides significantly higher secret key rates with increased bandwidths than previous schemes that only make single quadrature measurements. It also offers the further advantage of simplicity compared to all previous protocols which, to date, have relied on switching. ",

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