Title
Braess paradox at the mesoscopic scaleBraess paradox at the mesoscopic scale
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Condensed Matter Theory
Department of Physics
Publication type
article
Publication
Lancaster, Pa,
Subject
Physics
Source (journal)
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
Volume/pages
88(2013):24, p. 1-6
ISSN
1098-0121
1550-235X
1098-0121
Article Reference
245417
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We theoretically demonstrate that the transport inefficiency recently found experimentally for branched-out mesoscopic networks can also be observed in a quantum ring of finite width with an attached central horizontal branch. This is done by investigating the time evolution of an electron wave packet in such a system. Our numerical results show that the conductivity of the ring does not necessary improve if one adds an extra channel. This ensures that there exists a quantum analog of the Braess paradox, originating from quantum scattering and interference.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/777a34/6617.pdf
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