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Scientific article
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Scattering Theory of Mesoscopic Detectors

Published inSurface science, vol. 532-535, p. 617-622
Publication date2003
Abstract

We consider a two-level system coupled to a mesoscopic two-terminal conductor that acts as measuring device. As a convenient description of the conductor we introduce its scattering matrix. We show how its elements can be used to calculate the relaxation and decoherence rates of the two-level system. Special emphasis is laid on the charge screening in the conductor that becomes important in the many-channel limit. Finally we give some examples that illustrate charge screening in different limits.

Keywords
  • Mesoscopic systems and quantum hall effect
  • Condensed matter
  • Models of non-equilibrium phenomena
  • Electrical transport
  • Quantum effects
NoteProceedings of the 7th International Conference on Nanometer-Scale Science and Technology and the 21st European Conference on Surface Science
Citation (ISO format)
BUTTIKER, Markus, PILGRAM, Sebastian. Scattering Theory of Mesoscopic Detectors. In: Surface science, 2003, vol. 532-535, p. 617–622. doi: 10.1016/S0039-6028(03)00235-8
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ISSN of the journal0039-6028
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Creation11/30/2009 3:08:00 PM
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