Improving a lossy photon detector with an imperfect CNOT gate

Katherine L. Brown; Moochan B. Kim; Chris Richardson; Jonathan P. Dowling

doi:10.1364/QELS.2012.QTu3E.6

Conference on Lasers and Electro-Optics 2012
OSA Technical Digest (Optica Publishing Group, 2012),
paper QTu3E.6
•https://doi.org/10.1364/QELS.2012.QTu3E.6

Improving a lossy photon detector with an imperfect CNOT gate

Katherine L. Brown, Moochan B. Kim, Chris Richardson, and Jonathan P. Dowling

Quantum Electronics and Laser Science Conference 2012

San Jose, California United States
6–11 May 2012
ISBN: 978-1-55752-943-5

From the session
Detectors II (QTu3E)

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K. L. Brown, M. B. Kim, C. Richardson, and J. P. Dowling, "Improving a lossy photon detector with an imperfect CNOT gate," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (Optica Publishing Group, 2012), paper QTu3E.6.

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Abstract

We improve a lossy detector by using a CNOT gate to copy the classical information from the state into an ancilla qubit. This scheme works even when the CNOT gate introduces errors into the circuit.

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