Abstract

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.

Publication Details
Publication Type
Journal Article
Year of Publication
2015
Volume
15
Number of Pages
601–621
URL
http://arxiv.org/abs/1406.4510v1
Journal
Quantum Information and Computation
Contributors
Date Published
05/2015