## Enhancing the spreading of quantum walks on star graphs by additional bonds

- Anastasiia Anishchenko, Alexander Blumen, Oliver Mülken
- Quantum Information Processing
- 2012

We study numerically the behavior of continuous-time quantum walks over networks which are topologically equivalent to square lattices. On short time scales, when placing the initial excitation at a corner of the network, we observe a fast, directed transport through the network to the opposite corner. This transport is not ballistic in nature, but rather… (More)