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Prog. Theor. Phys. Supplement No.106 (1991) pp. 147-156
Orthogonality Exponents in Low-Dimensional Metals
K. Schönhammer
Institut für Theoretische Physik, Universität Göttingen, D-3400 Göttingen, Federal Republic of Germany
(Received August 19, 1991)
Abstract:
The Anderson orthogonality exponents K+ for introducing a localized perturbation into an electron gas and K(a) for displacing the localized potential by a vector α are discussed for one- and two-dimensional systems. It is shown that the “smoothness” of the potential enters very differently in the exponents K+ and K(a). The controversial point of the boundedness of the two exponents is clarified.
URL :
http://ptp.ipap.jp/link?PTPS/106/147/
DOI : 10.1143/PTPS.106.147
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