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Photonic Quantum Computing
Reducing multi-photon rates in pulsed down-conversion by temporal multiplexing
arXiv
Authors: Matthew A. Broome, Marcelo P. Almeida, Alessandro Fedrizzi, Andrew G. White
Year
2011
Paper ID
29113
Status
Preprint
Abstract Read
~2 min
Abstract Words
80
Citations
N/A
Abstract
We present a simple technique to reduce the emission rate of higher-order photon events from pulsed spontaneous parametric down-conversion. The technique uses extra-cavity control over a mode locked ultrafast laser to simultaneously increase repetition rate and reduce the energy of each pulse from the pump beam. We apply our scheme to a photonic quantum gate, showing improvements in the non-classical interference visibility for 2-photon and 4-photon experiments, and in the quantum-gate fidelity and entangled state production in the 2-photon case.
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- This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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- We present a simple technique to reduce the emission rate of higher-order photon events from pulsed spontaneous parametric down-conversion.
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