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Analysis of Interactions in Research,ived enormous attention both from the experimental and theoretical point of view (Prange and Girvin, 1987). Although many aspects of the effect are now understood based on this work, the actual transport theory of the effect, particularly in the transition regions between quantized plateaus, has rem

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Methodologie der Sozialwissenschaften pass through different paths would interfere with each other and the quantum interference would play an important role in electron transport. This quantum interference effect of electron waves has been of great interest in solid state physics (Umbach ., 1984; Shervin ., 1981; Webb ., 1985; Al’tshul

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,Erkl?rung, Voraussage und Verstehen,86; Heinrich ., 1988). The use of high-frequency electric fields, however, is of particular interest if the product ωτ? ～ 1, where 1/τ? is the phase-breaking rate which determines the phase coherence of the wave function (Altshuler ., 1981; Khmelnitskii, 1988). In quantum wires, high-frequency effec

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Sozialwissenschaften und soziale Praxis,evice of length .. Under stationary conditions, the basic quantities of interest are the current spectral density, ..(ω), and the correlation function of the instantaneous total current fluctuation, ..(.).

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Interference Devicesate ballistically until reflected by some sort of a boundary — either the sample edge or some other introduced sharp fluctuation in the potential. In the GaAs/GaAlAs heterojunction systems, it is relatively easy to attain mobilities high enough so that mean free paths are micometers or more. It is a

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