Physics – Quantum Physics
Scientific paper
2002-12-03
Phys. Rev. Lett. 90, 143601 (2003).
Physics
Quantum Physics
4 pages, 6 figures, submitted to PRL
Scientific paper
10.1103/PhysRevLett.90.143601
We consider multimode two-photon interference at a beam splitter by photons created by spontaneous parametric down-conversion. The resulting interference pattern is shown to depend upon the transverse spatial symmetry of the pump beam. In an experiment, we employ the first-order Hermite-Gaussian modes in order to show that, by manipulating the pump beam, one can control the resulting two-photon interference behavior. We expect these results to play an important role in the engineering of quantum states of light for use in quantum information processing and quantum imaging.
de Oliveira A. N.
Monken Carlos H.
Pádua Sebastião
Walborn Stephen P.
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