DPG Phi
Verhandlungen
Verhandlungen
DPG

Regensburg 2002 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

TT: Tiefe Temperaturen

TT 13: Systeme korrelierter Elektronen: Theorie I

TT 13.2: Vortrag

Dienstag, 12. März 2002, 15:00–15:15, H20

Delocalization in Coupled Luttinger Liquids with Impurities — •Stefan Scheidl, Simon Bogner, and Thorsten Emig — Institut für Theoretische Physik, Universität zu Köln

We study effects of quenched disorder on coupled two-dimensional arrays of Luttinger liquids (LL) as a model for stripes in high-Tc compounds. In the framework of a renormalization-group analysis, we find that weak inter-LL charge-density-wave and Josephson couplings are always irrelevant as opposed to the pure system. By varying either disorder strength, intra- or inter-LL interactions, the system can undergo a delocalization transition between an insulator and a novel strongly anisotropic metallic state with LL-like transport. This state is characterized by short-ranged charge and superconducting order, which we also expect for a single delocalized LL.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2002 > Regensburg