APS » PROLA » Phys. Rev. Lett. » Volume 92 » Issue 11

Phys. Rev. Lett. 92, 113602 (2004) [4 pages]

Direct Observation of Nonclassical Photon Statistics in Parametric Down-Conversion

Download: PDF (471 kB) or Buy this Article (Use Article Pack) Export: BibTeX or EndNote (RIS)

Edo Waks1, Eleni Diamanti1, Barry C. Sanders1,2,3, Stephen D. Bartlett2, and Yoshihisa Yamamoto1 *
1Quantum Entanglement Project, ICORP, JST, E. L. Ginzton Laboratories, Stanford University, Stanford, California 94305, USA
2Department of Physics, Macquarie University, Sydney, New South Wales 2109, Australia
3Department of Physics and Astronomy, University of Calgary, Alberta, Canada T2N 1N4

Received 22 July 2003; published 19 March 2004

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.


©2004 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v92/e113602
DOI: 10.1103/PhysRevLett.92.113602
PACS: 42.50.Ar, 42.50.Dv

* Also at NTT Basic Research Laboratories, Atsugi, Kanagawa, Japan.

[ Abstract  |  Previous article  |  Next article  |  Issue 11 ]