We show how the techniques developed for long distance quantum key distribution in optical fibers can be used to demonstrate other quantum information processing and communication protocols. We present a fiber optics realization of the Deutsch–Jozsa and Bernstein–Vazirani algorithms. We describe a method, called “error filtration”, for reducing errors in quantum communication channels, and present an experimental implementation thereof. We discuss the cryptographic primitive of string flipping, and present an experimental implementation which has higher security than achievable using any classical protocol.
Quantum Information Processing – Springer Journals
Published: Sep 1, 2006
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