Quantum Walks of Correlated Photons

Albert Peruzzo; Mirko Lobino; Jonathan C. F. Matthews; Nobuyuki Matsuda; Alberto Politi; Konstantinos Poulios; Xiao-Qi Zhou; Yoav Lahini; N. Ismail; Kerstin Worhoff; Yaron Bromberg; Yaron Silberberg; Mark G. Thompson; Jeremy L. OBrien

doi:10.1126/science.1193515

Quantum Walks of Correlated Photons

Albert Peruzzo, Mirko Lobino, Jonathan C. F. Matthews, Nobuyuki Matsuda, Alberto Politi, Konstantinos Poulios, Xiao-Qi Zhou, Yoav Lahini, N. Ismail, Kerstin Worhoff, Yaron Bromberg, Yaron Silberberg, Mark G. Thompson, Jeremy L. OBrien

Research output: Contribution to journal › Article › Academic › peer-review

817 Citations (Scopus)

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Abstract

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.

Original language	Undefined
Pages (from-to)	1500-1503
Number of pages	4
Journal	Science
Volume	329
Issue number	5998
DOIs	https://doi.org/10.1126/science.1193515
Publication status	Published - 17 Sept 2010

Keywords

quantum correletions
EWI-18535
IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY
IR-73925
correlated particles
METIS-271050
Quantum walk

Access to Document

10.1126/science.1193515

http://eprints.eemcs.utwente.nl/secure2/18535/01/1500.pdf

Cite this

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title = "Quantum Walks of Correlated Photons",

abstract = "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.",

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T1 - Quantum Walks of Correlated Photons

AU - Peruzzo, Albert

AU - Lobino, Mirko

AU - Matthews, Jonathan C. F.

AU - Matsuda, Nobuyuki

AU - Politi, Alberto

AU - Poulios, Konstantinos

AU - Zhou, Xiao-Qi

AU - Lahini, Yoav

AU - Ismail, N.

AU - Worhoff, Kerstin

AU - Bromberg, Yaron

AU - Silberberg, Yaron

AU - Thompson, Mark G.

AU - OBrien, Jeremy L.

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PY - 2010/9/17

Y1 - 2010/9/17

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AB - 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.

KW - quantum correletions

KW - EWI-18535

KW - IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY

KW - IR-73925

KW - correlated particles

KW - METIS-271050

KW - Quantum walk

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