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HL: Halbleiterphysik
HL 12: Poster I: Quanten Hall Effekt (1-9), II-VI Halbleiter (10-17), Epitaxie (18-23), Quantenpunkte und -dr
ähte (24-50), Photonik (51-59), Metall-Isolator Übergang (60-64), Si/Ge (65-67), Elektronentheorie (68-69), Amorphe Halbleiter, Ionen-Implantation
HL 12.46: Poster
Monday, March 27, 2000, 14:00–19:00, A
Local fields in quantum wires — •A. Fechner1, M. Sassetti2, and B. Kramer1 — 1I. Institut für Theoretische Physik, Jungiusstraße 9, D-20355 Hamburg — 2Dipartimento di Fisica, INFM, Università di Genova, Via Dodecaneso 33, I-16146 Genova
We investigate the dynamical interplay between currents and electromagnetic fields in a single–channel quantum wire in the presence of electron–electron interactions. We study the dispersion relation of the polariton which is due to the coupling of collective charge excitations in the quantum wire and electromagnetic fields. Further, we discuss the spatial shape of the local electric field in response to a given external field.