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Momentum switches

Autor(en)
Andrew M. Childs, David Gosset, Daniel Nagaj, Mouktik Raha, Zak Webb
Abstrakt

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.

Organisation(en)
Quantenoptik, Quantennanophysik und Quanteninformation
Externe Organisation(en)
University of Waterloo (UW), Slovak Academy of Sciences (SAS), Indian Institute of Technology Kharagpur
Journal
Quantum Information & Computation
Band
15
Seiten
601-621
Anzahl der Seiten
21
ISSN
1533-7146
Publikationsdatum
05-2015
Peer-reviewed
Ja
ÖFOS 2012
103025 Quantenmechanik
Schlagwörter
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/683cdc9d-f711-4366-a08d-f53138c52fa5