Multi-walker on multi-dimension

Observing a quantum walk of multiple indistinguishable particles on a multidimensional lattice graph constitutes a significant advance for experimental quantum information. We are developing guided-wave approaches for walks that use time-, space-, and polarization-encoding; each of these will contribute to achieving increasingly complex quantum walk systems. We will report on the design and operation of a system for studying the first multidimensional, multi-walker quantum walks.