Abstract
The decoherence induced in the quantum dynamics of a particle by its interaction with the excitations of a metallic wire is studied. We obtain that, even in a ballistic model for the particle, quantum effects at zero temperature are strongly suppressed at length scales longer than ln ch , where l is the elastic mean free path in the wire, and n ch is the number of electronic channels. A generalization to particles at finite energies gives the same estimate for electrons diffusing at a finite energy. The inclusion of the effects due to the low energy acoustic plasmons modify significantly the scale at which quantum effects are suppressed.
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More From: Physica E: Low-dimensional Systems and Nanostructures
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