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Phys Rev Lett. 2010 Feb 12;104(6):063602. Epub 2010 Feb 11.

Accessing higher order correlations in quantum optical states by time multiplexing.

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  • 1Max Planck Institute for the Science of Light, G√ľnther-Scharowsky-Strasse 1/Bau 24, 91058 Erlangen, Germany.


We experimentally measured higher order normalized correlation functions (NCF) of pulsed light with a time-multiplexing detector. We demonstrate excellent performance of our device by verifying unity valued NCF up to the eighth order for coherent light and factorial dependence of the NCF for pseudothermal light. We applied our measurement technique to a type-II parametric down-conversion source to investigate mutual two-mode correlation properties and ascertain nonclassicality.

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