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Decoherence-Free Subspaces in Quantum Key Distribution

Zachary D. Walton·Ayman F. Abouraddy·Alexander V. Sergienko·Bahaa E. A. Saleh·Malvin C. Teich
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Abstract

We demonstrate that two recent innovations in the field of practical quantum key distribution (one-way autocompensation and passive detection) are closely related to the methods developed to protect quantum computations from decoherence. We present a new scheme that combines these advantages, and propose a practical implementation of this scheme that is feasible using existing technology.

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Zachary D. Walton, Ayman F. Abouraddy, Alexander V. Sergienko, Bahaa E. A. Saleh, Malvin C. Teich. 2003-07-17. Decoherence-Free Subspaces in Quantum Key Distribution. https://doi.org/10.1103/physrevlett.91.087901

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