Quantum diffraction and interference of spatially correlated photon pairs generated by spontaneous parametric down-conversion

Journal Article · Tue Apr 01 04:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.041805· OSTI ID:20633930

Shimizu, Ryosuke; Edamatsu, Keiichi; Itoh, Tadashi ^[1]

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1. Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531 (Japan)

We demonstrate one- and two-photon diffraction and interference experiments utilizing parametric down-converted photon pairs (biphotons) and a transmission grating. With two-photon detection, the biphoton exhibits a diffraction-interference pattern equivalent to that of an effective single particle that is associated with half the wavelength of the constituent photons. With one-photon detection, however, no diffraction-interference pattern is observed. We show that these phenomena originate from the spatial quantum correlation between the down-converted photons.

• OSTI ID: 20633930
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 67; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CONVERSION
CORRELATIONS
DETECTION
DIFFRACTION
GRATINGS
INTERFERENCE
OPTICS
PHOTONS
QUANTUM MECHANICS
TRANSMISSION
VISIBLE RADIATION
WAVELENGTHS