Quantum Cryptography without Switching

Details Quantum Cryptography without Switching Quantum Cryptography without Switching

2004-05-19

arxiv.org/abs/quant-ph/0405105v2

Published, Phys. Rev. Lett. 93, 170504 (2004)

Physics

Quantum Physics

4 pages, 4 figures, Submitted

Scientific paper

10.1103/PhysRevLett.93.170504

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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