Momentum switches

TitleMomentum switches
Publication TypeJournal Article
Year of Publication2015
AuthorsChilds, AM, Gosset, D, Nagaj, D, Raha, M, Webb, Z
JournalQuantum Information and Computation
Date Published2015/05/01

Certain continuous-time quantum walks can be viewed as scattering processes.
These processes can perform quantum computations, but it is challenging to
design graphs with desired scattering behavior. In this paper, we study and
construct momentum switches, graphs that route particles depending on their
momenta. We also give an example where there is no exact momentum switch,
although we construct an arbitrarily good approximation.

Short TitleQuantum Information and Computation 15