Direct observation of nonclassical photon statistics in parametric down-conversion.
We employ a high quantum efficiency photon number counter to determine the photon number distribution of the output field from a parametric down-converter. The raw photocount data directly demonstrates that the source is nonclassical by 40 standard deviations, and correcting for the quantum efficiency yields a direct observation of oscillations in the photon number distribution.
Waks
Edo
E
Quantum Entanglement Project, ICORP, JST, E. L. Ginzton Laboratories, Stanford University, Stanford, California 94305, USA.
Diamanti
Eleni
E
Sanders
Barry C
BC
Bartlett
Stephen D
SD
Yamamoto
Yoshihisa
Y