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Superluminal tunneling of microwaves in smoothly varying transmission lines
Joint Institute of High Temperatures Russian Academy of Sciences.
Department of Physics Umeå University.
Department of Physics Umeå University.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics .
2008 (English)In: Physica. E, Low-Dimensional systems and nanostructures, ISSN 1386-9477, Vol. 78, 016601-1-016601-6 p.Article in journal (Refereed) Published
Abstract [en]

 Tunneling of microwaves through a smooth barrier in a transmission line is considered. In contrast to standard wave barriers, we study the case where the dielectric permittivity is positive, and the barrier is caused by the inhomogeneous dielectric profile. It is found that reflectionless, superluminal tunneling can take place for waves with a finite spectral width. The consequences of these findings are discussed, and an experimental setup testing our predictions is proposed.

Place, publisher, year, edition, pages
2008. Vol. 78, 016601-1-016601-6 p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-43492DOI: 10.1103/PhysRevE.78.016601Local ID: 73955OAI: diva2:264351
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2011-01-10

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Stenflo, Lennart
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The Institute of TechnologyTheoretical Physics
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