General Projective Approach to Transport Coefficients of Condensed Matter Systems and Application to an Atomic Wire
Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen:
https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201003165677
https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201003165677
Titel: | General Projective Approach to Transport Coefficients of Condensed Matter Systems and Application to an Atomic Wire |
Autor(en): | Bartsch, Christian |
Erstgutachter: | Prof. Dr. Jochen Gemmer |
Zweitgutachter: | Prof. Dr. Michael Rohlfing |
Zusammenfassung: | We present a novel approach to the investigation of transport coefficients in condensed matter systems, which is based on a pertinent time-convolutionless (TCL) projection operator technique. In this context we analyze in advance the convergence of the corresponding perturbation expansion and the influence of the occurring inhomogeneity. The TCL method is used to establish a formalism for a consistent derivation of a Boltzmann equation from the underlying quantum dynamics, which is meant to apply to non-ideal quantum gases. We obtain a linear(ized) collision term that results as a finite non-singular rate matrix and is thus adequate for further considerations, e.g., the calculation of transport coefficients. In the work at hand we apply the provided scheme to numerically compute the diffusion coefficient of an atomic wire and especially analyze its dependence on certain model properties, in particular on the width of the wire. |
URL: | https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201003165677 |
Schlagworte: | transport coefficients; condensed matter systems; atomic wire; projection operator techniques; Boltzmann equation |
Erscheinungsdatum: | 16-Mär-2010 |
Publikationstyp: | Dissertation oder Habilitation [doctoralThesis] |
Enthalten in den Sammlungen: | FB06 - E-Dissertationen |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
thesis_bartsch.pdf | Präsentationsformat | 1,74 MB | Adobe PDF | thesis_bartsch.pdf Öffnen/Anzeigen |
Alle Ressourcen im Repositorium osnaDocs sind urheberrechtlich geschützt, soweit nicht anderweitig angezeigt. rightsstatements.org