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Interference of quantum channels in single photon interferometer

Guo-Yong Xiang, Jian Li, Guang-Can Guo

quant-pharXiv:quant-ph/0607180

Abstract

We experimently demonstrate the interference of dephasing quantum channel using single photon Mach-Zender interferometer. We extract the information inaccessible to the technology of quantum tomography. Further, We introduce the application of our results in quantum key distribution.

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