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

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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 languageEnglish
Article number075003
Number of pages13
JournalNew Journal of Physics
Volume13
DOIs
Publication statusPublished - 13 Jul 2011

Keywords

  • LASER
  • PHOTONS

Cite this

Owens, J. O., Broome, M. A., Biggerstaff, D. N., Goggin, M. E., Fedrizzi, A., Linjordet, T., Ams, M., Marshall, G. D., Twamley, J., Withford, M. J., & White, A. G. (2011). Two-photon quantum walks in an elliptical direct-write waveguide array. New Journal of Physics, 13, [075003]. https://doi.org/10.1088/1367-2630/13/7/075003