A new transport phenomenon in nanostructures: a mesoscopic analog of the Braess paradox encountered in road networks

被引：0
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作者：
Marco Pala
Hermann Sellier
Benoit Hackens
Frederico Martins
Vincent Bayot
Serge Huant
机构：
[1] Grenoble INP,IMEP
[2] CNRS and Université Joseph Fourier,LAHC
[3] UCLouvain,Institut Néel
[4] 2 Chemin du Cyclotron,IMCN/NAPS
来源：
Nanoscale Research Letters | / 7卷
关键词：
Braess paradox; Mesoscopic physics; Congested networks; Scanning gate microscopy;
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摘要：
The Braess paradox, known for traffic and other classical networks, lies in the fact that adding a new route to a congested network in an attempt to relieve congestion can degrade counterintuitively the overall network performance. Recently, we have extended the concept of the Braess paradox to semiconductor mesoscopic networks, whose transport properties are governed by quantum physics. In this paper, we demonstrate theoretically that, alike in classical systems, congestion plays a key role in the occurrence of a Braess paradox in mesoscopic networks.
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