A DMRG study of a level coupled to a 1D interacting lead
| Autor: | Moshe Goldstein, Yuval Weiss, Richard Berkovits, Miri Sade |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Density matrix
education.field_of_study Condensed matter physics Chemistry Density matrix renormalization group Population Condensed Matter Physics Resonance (particle physics) Electronic Optical and Magnetic Materials k-nearest neighbors algorithm Luttinger liquid Phase (matter) Condensed Matter::Strongly Correlated Electrons education Charge density wave |
| Zdroj: | physica status solidi (b). 243:399-402 |
| ISSN: | 0370-1972 |
| Popis: | The influence of nearest neighbor interactions in a reservoir coupled to a single level dot on the width of the level is studied, using the density matrix renormalization group (DMRG) method. We find that while in the Luttinger liquid (LL) phase of the lead (i.e., for weak interactions) the interactions cause a gradual decrease of the resonance width, in the charge density wave (CDW) phase (for strong interactions) the width is zero, and a sharp jump of the dot population occurs. We explain the physical difference between both cases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text