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Phys Rev Lett. 2008 Dec 5;101(23):233603. Epub 2008 Dec 2.

Even-order aberration cancellation in quantum interferometry.

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  • 1Department of Electrical & Computer Engineering, Boston University, Boston, Massachusetts 02215, USA.

Abstract

We report the first experimental demonstration of even-order aberration cancellation in quantum interferometry. The effect is a spatial counterpart of the spectral group velocity dispersion cancellation, which is associated with spectral entanglement. It is manifested in temporal interferometry by virtue of the multiparameter spatial-spectral entanglement. Spatially entangled photons, generated by spontaneous parametric down-conversion, were subjected to spatial aberrations introduced by a deformable mirror that modulates the wave front. We show that only odd-order spatial aberrations affect the quality of quantum interference.

PMID:
19113552
[PubMed]
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