S-matrix pole trajectories in quantum wires with resonantly coupled cavities

We consider a T-shaped, one-dimensional quantum waveguide containing an attractive or repulsive impurity in the lateral stub, and study how the resonance poles move in the complex k-plane when the strength or the position of the defect changes. Similarities and differences with respect to standard potential scattering problems are highlighted. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

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Year of publication:	2006
Authors:	Cattapan, G. ; Lotti, P. ; Pascolini, A.
Published in:	The European Physical Journal B - Condensed Matter and Complex Systems. - Springer. - Vol. 53.2006, 3, p. 387-394
Publisher:	Springer
Subject:	73.63.Nm Quantum wires \| 73.23.Ad Ballistic transport \| 72.10.Fk Scattering by point defects \| dislocations \| surfaces \| and other imperfections (including Kondo effect)

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

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