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Semiclassical transport in a square billiard: Conductance oscillations as probe of coherence length
Linkoping Univ, IFM, Dept Phys, S-58183 Linkoping, Sweden.
Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
2000 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, Vol. 61, no 3, 1724-1727 p.Article in journal (Refereed) Published
Abstract [en]

We provide a semiclassical interpretation of the conductance oscillations in a square billiard and outline its relation to a commonly used picture of periodic orbits. We demonstrate that the characteristic frequencies in the conductance arise as a result of interference of pairs of long trajectories that typically bounce in a vicinity of the corresponding periodic orbits in the phase space. We present an unambiguous identification of the specific pairs of trajectories causing the pronounced peaks in the observed length spectrum of the conductance. This allows us to extract directly the phase coherence length from the frequency of the observed oscillations.

Place, publisher, year, edition, pages
2000. Vol. 61, no 3, 1724-1727 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-49826OAI: diva2:270722
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-14

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Zozoulenko, Igor
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The Institute of TechnologyDepartment of Science and Technology
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