Two-photon quantum walks in an elliptical direct-write waveguide array

J. O. Owens; M. A. Broome; D. N. Biggerstaff; M. E. Goggin; A. Fedrizzi; T. Linjordet; M. Ams; G. D. Marshall; J. Twamley; M. J. Withford; A. G. White

doi:10.1088/1367-2630/13/7/075003

Two-photon quantum walks in an elliptical direct-write waveguide array

J. O. Owens^*, M. A. Broome, D. N. Biggerstaff, M. E. Goggin, A. Fedrizzi, T. Linjordet, M. Ams, G. D. Marshall, J. Twamley, M. J. Withford, A. G. White

^*Corresponding author for this work

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Abstract

Integrated optics provides an ideal testbed for the emulation of quantum systems via continuous-time quantum walks. Here, we study the evolution of two-photon states in an elliptic array of waveguides.We characterize the photonic chip via coherent light tomography and use the results to predict distinct differences between temporally indistinguishable and distinguishable two-photon inputs, which we then compare with experimental observations. This work highlights the feasibility of emulation of coherent quantum phenomena in three-dimensional waveguide structures.

Original language	English
Article number	075003
Pages (from-to)	1-13
Number of pages	13
Journal	New Journal of Physics
Volume	13
DOIs	https://doi.org/10.1088/1367-2630/13/7/075003
Publication status	Published - 13 Jul 2011

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Copyright IOP Publishing Ltd and Deutsche Physikalische Gesellschaft 2011. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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AU - Owens, J. O.

AU - Broome, M. A.

AU - Biggerstaff, D. N.

AU - Goggin, M. E.

AU - Fedrizzi, A.

AU - Linjordet, T.

AU - Ams, M.

AU - Marshall, G. D.

AU - Twamley, J.

AU - Withford, M. J.

AU - White, A. G.

N1 - Copyright IOP Publishing Ltd and Deutsche Physikalische Gesellschaft 2011. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2011/7/13

Y1 - 2011/7/13

N2 - Integrated optics provides an ideal testbed for the emulation of quantum systems via continuous-time quantum walks. Here, we study the evolution of two-photon states in an elliptic array of waveguides.We characterize the photonic chip via coherent light tomography and use the results to predict distinct differences between temporally indistinguishable and distinguishable two-photon inputs, which we then compare with experimental observations. This work highlights the feasibility of emulation of coherent quantum phenomena in three-dimensional waveguide structures.

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Two-photon quantum walks in an elliptical direct-write waveguide array

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