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Photonic Quantum Computing
Experimental position-time entanglement with degenerate single photons
arXiv
Authors: A. J. Bennett, D. G. Gevaux, Z. L. Yuan, A. J. Shields, P. Atkinson, D. A. Ritchie
Year
2007
Paper ID
49159
Status
Preprint
Abstract Read
~2 min
Abstract Words
78
Citations
N/A
Abstract
We report an experiment in which two-photon interference occurs between degenerate single photons that never meet. The two photons travel in opposite directions through our fibre-optic interferometer and interference occurs when the photons reach two different, spatially separated, 2-by-2 couplers at the same time. We show that this experiment is analogous to the conventional Franson-type entanglement experiment where the photons are entangled in position and time. We measure wavefunction overlaps for the two photons as high as 94 pm 3%.
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- This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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- We report an experiment in which two-photon interference occurs between degenerate single photons that never meet.
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