Konstantinos Poulios
Quantum Walks of Correlated Photon Pairs in Two-Dimensional Waveguide Arrays
Poulios, Konstantinos; Keil, Robert; Fry, Daniel; D. A. Meinecke, Jasmin; C. F. Matthews, Jonathan; Politi, Alberto; Lobino, Mirko; Gr�fe, Markus; Heinrich, Matthias; Nolte, Stefan; Szameit, Alexander; L. O'Brien, Jeremy
Authors
Robert Keil
Daniel Fry
Jasmin D. A. Meinecke
Jonathan C. F. Matthews
Alberto Politi
Mirko Lobino
Markus Gr�fe
Matthias Heinrich
Stefan Nolte
Alexander Szameit
Jeremy L. O'Brien
Abstract
We demonstrate quantum walks of correlated photons in a 2D network of directly laser written waveguides coupled in a 'swiss cross' arrangement. The correlated detection events show high-visibility quantum interference and unique composite behaviour: strong correlation and independence of the quantum walkers, between and within the planes of the cross. Violations of a classically defined inequality, for photons injected in the same plane and in orthogonal planes, reveal non-classical behaviour in a non-planar structure.
Citation
Poulios, K., Keil, R., Fry, D., D. A. Meinecke, J., C. F. Matthews, J., Politi, A., …L. O'Brien, J. (2014). Quantum Walks of Correlated Photon Pairs in Two-Dimensional Waveguide Arrays. Physical Review Letters, 112(14), Article 143604. https://doi.org/10.1103/PhysRevLett.112.143604
Journal Article Type | Article |
---|---|
Publication Date | Apr 11, 2014 |
Deposit Date | Sep 23, 2019 |
Journal | Physical Review Letters |
Print ISSN | 0031-9007 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 112 |
Issue | 14 |
Article Number | 143604 |
DOI | https://doi.org/10.1103/PhysRevLett.112.143604 |
Keywords | Quantum Physics |
Public URL | https://nottingham-repository.worktribe.com/output/2465709 |
Publisher URL | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.143604 |
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