TY - JOUR AU - Silberhorn, Ch. N AB - We investigate the impact of decoherence and static disorder on the dynamics of quantum particles moving in a periodic lattice. Our experiment relies on the photonic implementation of a one-dimensional quantum walk. The pure quantum evolution is characterized by a ballistic spread of a photon’s wave packet along 28 steps. By applying controlled time-dependent operations we simulate three different environmental influences on the system, resulting in a fast ballistic spread, a diffusive classical walk, and the first Anderson localization in a discrete quantum walk architecture. TI - Decoherence and Disorder in Quantum Walks: From Ballistic Spread to Localization JF - Physical Review Letters DO - 10.1103/PhysRevLett.106.180403 DA - 2011-05-06 UR - https://www.deepdyve.com/lp/american-physical-society-aps/decoherence-and-disorder-in-quantum-walks-from-ballistic-spread-to-0d8NDmjf8a VL - 106 IS - 18 DP - DeepDyve ER -