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Spontaneous parametric down-conversion and quantum walks in arrays of quadratic nonlinear waveguides

Solntsev, Alexander; Neshev, Dragomir; Sukhorukov, Andrey; Kivshar, Yuri


We analyze the process of photon-pair generation with simultaneous quantum walks in a quadratic nonlinear waveguide array. We demonstrate that the spontaneous parametric down-conversion in the array allows for creating quantum states with strongly pronounced spatial correlations, which are qualitatively different from those possible in bulk crystals or through quantum walks in linear waveguide arrays. Most importantly, the photon correlations can be controlled entirely classically by varying...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.108.023601
Access Rights: Open Access


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