TY - JOUR
T1 - Quantum walks of correlated photons
AU - Peruzzo, Alberto
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, Nur
AU - Wörhoff, Kerstin
AU - Bromberg, Yaron
AU - Silberberg, Yaron
AU - Thompson, Mark G.
AU - OBrien, Jeremy L.
PY - 2010/9/17
Y1 - 2010/9/17
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=77956678074&partnerID=8YFLogxK
U2 - 10.1126/science.1193515
DO - 10.1126/science.1193515
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AN - SCOPUS:77956678074
SN - 0036-8075
VL - 329
SP - 1500
EP - 1503
JO - Science
JF - Science
IS - 5998
ER -