Quantum Walks of Correlated Photons
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Author(s)
Peruzzo, Alberto
Lobino, Mirko
C. F. Matthews, Jonathan
Matsuda, Nobuyuki
Politi, Alberto
Poulios, Konstantinos
Zhou, Xiao-Qi
Lahini, Yoav
Ismail, Nur
Worhoff, Kerstin
Bromberg, Yaron
Silberberg, Yaron
G. Thompson, Mark
L. OBrien, Jeremy
Griffith University Author(s)
Year published
2010
Metadata
Show full item recordAbstract
Quantum walks of correlated particles offer the possibility of studying large-scale quantum interference; simulating biological, chemical, and physical systems; and providing a route to universal quantum computation. We have demonstrated quantum walks of two identical photons in an array of 21 continuously evanescently coupled waveguides in a SiOxNy chip. We observed quantum correlations, violating a classical limit by 76 standard deviations, and found that the correlations depended critically on the input state of the quantum walk. These results present a powerful approach to achieving quantum walks with correlated particles ...
View more >Quantum walks of correlated particles offer the possibility of studying large-scale quantum interference; simulating biological, chemical, and physical systems; and providing a route to universal quantum computation. We have demonstrated quantum walks of two identical photons in an array of 21 continuously evanescently coupled waveguides in a SiOxNy chip. We observed quantum correlations, violating a classical limit by 76 standard deviations, and found that the correlations depended critically on the input state of the quantum walk. These results present a powerful approach to achieving quantum walks with correlated particles to encode information in an exponentially larger state space.
View less >
View more >Quantum walks of correlated particles offer the possibility of studying large-scale quantum interference; simulating biological, chemical, and physical systems; and providing a route to universal quantum computation. We have demonstrated quantum walks of two identical photons in an array of 21 continuously evanescently coupled waveguides in a SiOxNy chip. We observed quantum correlations, violating a classical limit by 76 standard deviations, and found that the correlations depended critically on the input state of the quantum walk. These results present a powerful approach to achieving quantum walks with correlated particles to encode information in an exponentially larger state space.
View less >
Journal Title
Science
Volume
329
Issue
5998
Copyright Statement
© The Author(s) 2010. This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on Vol. 329, 17 September 2010, DOI: dx.doi.org/10.1126/science.1193515.
Subject
Quantum information, computation and communication
Quantum optics and quantum optomechanics