TY - JOUR
T1 - A 2D quantum walk simulation of two-particle dynamics
AU - Schreiber, Andreas
AU - Gábris, Aurél
AU - Rohde, Peter P.
AU - Laiho, Kaisa
AU - Štefaňák, Martin
AU - Potoček, Václav
AU - Hamilton, Craig
AU - Jex, Igor
AU - Silberhorn, Christine
PY - 2012/4/6
Y1 - 2012/4/6
N2 - Multidimensional quantum walks can exhibit highly nontrivial topological structure, providing a powerful tool for simulating quantum information and transport systems. We present a flexible implementation of a two-dimensional (2D) optical quantum walk on a lattice, demonstrating a scalable quantum walk on a nontrivial graph structure. We realized a coherent quantum walk over 12 steps and 169 positions by using an optical fiber network. With our broad spectrum of quantum coins, we were able to simulate the creation of entanglement in bipartite systems with conditioned interactions. Introducing dynamic control allowed for the investigation of effects such as strong nonlinearities or two-particle scattering. Our results illustrate the potential of quantum walks as a route for simulating and understanding complex quantum systems.
AB - Multidimensional quantum walks can exhibit highly nontrivial topological structure, providing a powerful tool for simulating quantum information and transport systems. We present a flexible implementation of a two-dimensional (2D) optical quantum walk on a lattice, demonstrating a scalable quantum walk on a nontrivial graph structure. We realized a coherent quantum walk over 12 steps and 169 positions by using an optical fiber network. With our broad spectrum of quantum coins, we were able to simulate the creation of entanglement in bipartite systems with conditioned interactions. Introducing dynamic control allowed for the investigation of effects such as strong nonlinearities or two-particle scattering. Our results illustrate the potential of quantum walks as a route for simulating and understanding complex quantum systems.
UR - http://www.scopus.com/inward/record.url?scp=84859482447&partnerID=8YFLogxK
U2 - 10.1126/science.1218448
DO - 10.1126/science.1218448
M3 - Article
C2 - 22403179
AN - SCOPUS:84859482447
VL - 335
SP - 55
EP - 58
JO - Science (New York, N.Y.)
JF - Science (New York, N.Y.)
SN - 0036-8075
IS - 6077
ER -