arXiv:cond-mat/0311479

Quantum Wave Resistance of Schrodinger functions

Timir Datta, Raphael Tsu

Published Nov 20, 2003• 5 citations

Abstract

The new concept of quantum wave-impedance (QWI), Z is introduced to answer the question whether there is impedance to a Schrodinger wave. Z will be an analogue of Maxwell's free space impedance (376.7 ohm) for electromagnetic waves. We show, for free particle wave function, the value of Z is in general not zero and purely real (resistive). As in quantum hall (QHE), Z can be expressed in terms of the fine structure constant, the electromagnetic permittivity and permeability of free space. Z is a determinant of the partitioning and flow of charge and energy transported by the quantum system. The scale factor of Z is about 12.9 kilo-ohms (per spin), so the corresponding wave conductance G is (77.5 micro-mho, per spin) double the unit of Landaur conductance. As functions of the quantum numbers (l,m,n) Z shows, peaks, valleys and plateaus; also as in QHE, both integer and fractional steps may be obtained. In microwave and optical technology, conventional impedance is an essential parameter. The quantum impedance defined here will be no exception in future technology.

DOI: 10.48550/arxiv.cond-mat/0311479

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