Cryptography Reference
In-Depth Information
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Figure 6.8
Experimental results from a demonstration of a quantum encoder.
(Reprinted with permission from T.B. Pittman, B.C. Jacobs, and J.D. Franson, Phys.
Rev. A, 69, 042306, 2004. Copyright 2004 by the American Physical Society.)
per cycle time in the original experiment. We are currently working on an
improved version of this experiment in which the photons are stored in an
optical fiber loop and special-purpose switches are used to reduce the amount
of loss.
single ancilla
photon
control
photon
target
photon
Figure 6.9
Implementation of a CNOT gate in the coincidence basis using a single
ancilla photon. (Reprinted with permission from T.B. Pittman, M.J. Fitch, B.C. Jacobs,
and J.D. Franson, Phys. Rev. A, 68, 032316, 2003. Copyright 2003 by the American
Physical Society.)
