Simulations of two-particle interactions with 2D quantum walks in time
A. Schreiber, A. Gábris, Peter P. Rohde, Kaisa Laiho, M. Štefaňák, Václav Potoček, Craig S. Hamilton, Igor Jex, Christine Silberhorn · AIP conference proceedings · 2014
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.