Factorization of the N-Electron Wave Function in the Kondo Ground State
Author
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-17
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The multielectron wave function of an interacting electron system depends on the size of the system, that is, the number of electrons.
Here the question investigated is how the wave function changes for a symmetric Friedel-Anderson impurity when the volume is doubled.
It turns out that for sufficiently large volume (when the level spacing is smaller than the resonance width) the change in the wave function can be expressed in terms of a universal single-electron state |q〉 centered at the Fermi level.
This electron state is independent of the number of electrons and independent of the parameters of the Friedel-Anderson impurity.
It is even the same universal state for a Kondo impurity and a symmetric Friedel impurity independent of any parameter.
The only requirement is that the impurity has a resonance exactly at the Fermi level and that the level spacing is smaller than the resonance width.
This result clarifies recent fidelity calculations.
American Psychological Association (APA)
Bergmann, Gerd. 2012. Factorization of the N-Electron Wave Function in the Kondo Ground State. ISRN Condensed Matter Physics،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-468470
Modern Language Association (MLA)
Bergmann, Gerd. Factorization of the N-Electron Wave Function in the Kondo Ground State. ISRN Condensed Matter Physics No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-468470
American Medical Association (AMA)
Bergmann, Gerd. Factorization of the N-Electron Wave Function in the Kondo Ground State. ISRN Condensed Matter Physics. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-468470
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468470