Excitations of interacting fermions in reduced dimensions

Anregungen der wechselwirkenden Fermionen in reduzierten Dimensionen

  • In this thesis, we study the properties of excitations in the systems of interacting fermions. These excitations can be bosonic such as collective modes which we handle in the first part of this thesis or fermionic like quasi particles and quasi holes. One of the important points, to investigate the excitations is their damping which corresponds to their life-time in the system. This thesis consists of two parts, where in both parts, we use the field-theoretical methods to examine the problem.
  • In dieser Arbeit untersuchen wir niedrigenergetische Anregungen in niedrigdimensionalen Fermi-Systemen. Diese Dissertation besteht aus zwei Teilen. In dem ersten Teil studieren wir die Eigenschaften der bosonischen Anregung nullter Schall in eindimensionalen Fermigasen während wir im zweiten Teil Einteilchen-Anregungen der Störelektronen im Anderson-Störstellen-Modell betrachten.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Peyman Pirooznia
URN:urn:nbn:de:hebis:30-76239
Referee:Peter KopietzORCiDGND
Document Type:Doctoral Thesis
Language:English
Date of Publication (online):2010/04/30
Year of first Publication:2010
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Granting Institution:Johann Wolfgang Goethe-Universität
Date of final exam:2010/04/14
Release Date:2010/04/30
Tag:Bosonisierung; Dynamischer Strukturfaktor; Niedrige Dimensionen
Anderson Impurity model; Excitation; Fermions; Luttinger liquid; low dimensions
GND Keyword:Anderson-Modell; Luttinger-Flüssigkeit; Anregung; Kollektive Anregung; Nullter Schall; Renormierungsgruppe; Störungstheorie; Quasiteilchen
HeBIS-PPN:222968834
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:70.00.00 CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES / 71.00.00 Electronic structure of bulk materials (see section 73 for electronic structure of surfaces, interfaces, low-dimensional structures, and nanomaterials; for electronic structure of superconductors, see 74.25.Jb) / 71.10.-w Theories and models of many-electron systems
70.00.00 CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES / 71.00.00 Electronic structure of bulk materials (see section 73 for electronic structure of surfaces, interfaces, low-dimensional structures, and nanomaterials; for electronic structure of superconductors, see 74.25.Jb) / 71.10.-w Theories and models of many-electron systems / 71.10.Pm Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.) (for anyon mechanism in superconductors, see 74.20.Mn)
70.00.00 CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES / 71.00.00 Electronic structure of bulk materials (see section 73 for electronic structure of surfaces, interfaces, low-dimensional structures, and nanomaterials; for electronic structure of superconductors, see 74.25.Jb) / 71.27.+a Strongly correlated electron systems; heavy fermions
70.00.00 CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES / 72.00.00 Electronic transport in condensed matter (for electronic transport in surfaces, interfaces, and thin films, see section 73; for electrical properties related to treatment conditions, see 81.40.Rs; for transport properties of superconductors, see 74.25.Fy; / 72.15.-v Electronic conduction in metals and alloys / 72.15.Qm Scattering mechanisms and Kondo effect (see also 75.20.Hr Local moments in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions in magnetic properties and materials)
Sammlungen:Universitätspublikationen
Licence (German):License LogoDeutsches Urheberrecht

OPUS4 Logo