| Autor: |
Kang Y; Department of Physics, College of Natural Science, Inha University, Incheon, Republic of Korea., Cho K, Noh J, Vitullo DL, Leary C, Raymer MG |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2010 Jan 18; Vol. 18 (2), pp. 1217-33. |
| DOI: |
10.1364/OE.18.001217 |
| Abstrakt: |
We propose and provide experimental evidence in support of a theory for the remote preparation of a complex spatial state of a single photon. An entangled two-photon source was obtained by spontaneous parametric down-conversion, and a double slit was placed in the path of the signal photon as a scattering object. The signal photon was detected after proper spatial filtering so that the idler photon was prepared in the corresponding single-photon state. By using a two-photon coincidence measurement, we obtained the Radon transform, at several longitudinal distances, of the single-photon Wigner distribution function modified by the double slit. The experimental results are consistent with the idler photon being in a pure state. An inverse Radon transformation can, in principle, be applied to the measured data to reconstruct the modified single-photon Wigner function, which is a complete representation of the amplitude and phase structure of the scattering object. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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