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.

Quantum walks of correlated photons / Peruzzo, A.; Lobino, M.; Matthews, J. C. F.; Matsuda, N.; Politi, A.; Poulios, K.; Zhou, X. -Q.; Lahini, Y.; Ismail, N.; Worhoff, K.; Bromberg, Y.; Silberberg, Y.; Thompson, M. G.; Obrien, J. L.. - In: SCIENCE. - ISSN 0036-8075. - 329:5998(2010), pp. 1500-1503. [10.1126/science.1193515]

Quantum walks of correlated photons

Lobino M.;
2010-01-01

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.
2010
5998
Peruzzo, A.; Lobino, M.; Matthews, J. C. F.; Matsuda, N.; Politi, A.; Poulios, K.; Zhou, X. -Q.; Lahini, Y.; Ismail, N.; Worhoff, K.; Bromberg, Y.; Silberberg, Y.; Thompson, M. G.; Obrien, J. L.
Quantum walks of correlated photons / Peruzzo, A.; Lobino, M.; Matthews, J. C. F.; Matsuda, N.; Politi, A.; Poulios, K.; Zhou, X. -Q.; Lahini, Y.; Ismail, N.; Worhoff, K.; Bromberg, Y.; Silberberg, Y.; Thompson, M. G.; Obrien, J. L.. - In: SCIENCE. - ISSN 0036-8075. - 329:5998(2010), pp. 1500-1503. [10.1126/science.1193515]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/334422
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