We have a special group meeting Thursday 21, 4 PM at Naito 030 by a visitor of our group, Matthew Broome, from the School of Mathematics and Physics of the University of Queensland.

The quantum walk, the quantum version of its classical counterpart the random walk, has received a lot of attention in the past few years both inside and outside of the laboratory. The  quantum walk has been proposed as a valuable tool for quantum computation in addition to investigating phenomenon such as Anderson localisation and even energy transport in biological systems. I will give a description of our experimental implementation for the discrete-time quantum walk with single photons in space and show how we tuned the level of decoherence in the system from completely quantum right through to the classical random walk. I will also show the most recent application of the experiment: investigating topological phases with discrete time quantum walks.