Joshua Silverstone, Damien Bonneau, Kazuya Ohira, Nob Suzuki, Haruhiko Yoshida, Norio Iizuka, Mizunori Ezaki, Robert Hadfield, Val Zwiller, John Rarity, Jeremy OBrien, Mark Thompson
Integrated quantum optics promises to enhance the scale and functionality of quantum technologies, and has become a leading platform for the development of complex and stable quantum photonic circuits. Here, we report the on-chip generation and manipulation of two-photon entanglement, and high-visibility quantum interference with two photon-pair sources integrated within a reconfigurable silicon-on-insulator photonic circuit. Degenerate and non-degenerate entangled photon pairs were created and manipulated on-chip to exhibit quantum interference with visibility as high as 100.0 +/- 0.4%. Our device presents integration of photon-pair sources with dynamic quantum photonic circuitry, and the first high-visibility quantum interference between on-chip sources. These results represent a path to the next generation of monolithic quantum photonic circuits with integrated sources.
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http://arxiv.org/abs/1304.1490
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