Full Published Online: 17 February 2015
AIP Conference Proceedings 1633, 204 (2014); https://doi.org/10.1063/1.4903138
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  • A. Schreiber
  • A. Gábris
  • P. P. Rohde
  • K. Laiho
  • M. Štefaňak
  • V. Potoček
  • C. Hamilton
  • I. Jex
  • C. Silberhorn
We present the experimental implementation of a quantum walk on a two-dimensional lattice and show how to employ the optical system to simulate the quantum propagation of two interacting particles. Our quantum walk in time transfers the spatial spread of a quantum walk into the time domain, which guarantees a high stability and scalability of the setup. We present with our device quantum walks over 12 steps on a 2D lattice. By changing the properties of the driving quantum coin, we investigate different kinds of two-particle interactions and reveal their impact on the occurring quantum propagation.
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