Decoherence-Free Subspaces in Quantum Key Distribution
Zachary Walton, Ayman F. Abouraddy, Alexander V. Sergienko, Bahaa E. A. Saleh, Malvin Carl Teich · Physical Review Letters · 2003
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.