Quantum Transport Enhancement by Time-Reversal Symmetry Breaking

Autor(en)

Zolta Zimboras, Mauro Faccin, Zoltan Kadar, James D. Whitfield, Ben P. Lanyon, Jacob Biamonte

Abstrakt

Quantum mechanics still provides new unexpected effects when considering the transport of energy and information. Models of continuous time quantum walks, which implicitly use time-reversal symmetric Hamiltonians, have been intensely used to investigate the effectiveness of transport. Here we show how breaking time-reversal symmetry of the unitary dynamics in this model can enable directional control, enhancement, and suppression of quantum transport. Examples ranging from exciton transport to complex networks are presented. This opens new prospects for more efficient methods to transport energy and information.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Istituto per l'Interscambio Scientifico, University of the Basque Country, National University of Singapore (NUS), Österreichische Akademie der Wissenschaften (ÖAW)

Journal

Scientific Reports

Band

3

Anzahl der Seiten

6

ISSN

2045-2322

DOI

https://doi.org/10.1038/srep02361

Publikationsdatum

08-2013

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/998b4c3e-71ec-4cf4-9db6-f7fe3c996b12