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EnglishThe effects of long-range interactions in quantum transport are still largely unexplored, mainly due to the difficulty of devising efficient embedding schemes. In this work we present a substantial progress in the interacting resonant level model by reducing the problem to the solution of Kadanoff-Baym-like equations with a correlated embedding self-energy. The method allows us to deal with short- and long-range interactions and is applicable from the transient to the steady-state regime. Furthermore, memory effects are consistently incorporated and the results are not plagued by negative densities or nonconservation of the electric charge. We employ the method to calculate densities and currents with long-range interactions appropriate to low-dimensional leads, and show the occurrence of a jamming effect, which drastically reduces the screening time and suppresses the zero-bias conductance. None of these effects are captured by short-range model interactions.
Perfetto, E., Stefanucci, G., & Cini, M. (2012). Interacting resonant-level model with long-range interactions: Fast screening and suppression of the zero-bias conductance. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 85(16), 165437-1-165437-6.
| Tipologia: | Articolo su rivista |
| Citazione: | Perfetto, E., Stefanucci, G., & Cini, M. (2012). Interacting resonant-level model with long-range interactions: Fast screening and suppression of the zero-bias conductance. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 85(16), 165437-1-165437-6. |
| IF: | Con Impact Factor ISI |
| Lingua: | English |
| Settore Scientifico Disciplinare: | Settore FIS/03 - Fisica della Materia |
| Revisione (peer review): | Sì, ma tipo non specificato |
| Tipo: | Articolo |
| Rilevanza: | Rilevanza internazionale |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevB.85.165437 |
| Stato di pubblicazione: | Pubblicato |
| Data di pubblicazione: | 2012 |
| Titolo: | Interacting resonant-level model with long-range interactions: Fast screening and suppression of the zero-bias conductance |
| Autori: | |
| Autori: | Perfetto, E; Stefanucci, G; Cini, M |
| Appare nelle tipologie: | 01 - Articolo su rivista |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| long-range PhysRevB.85.165437.pdf | N/A | EmbargoOpen Access Visualizza/Apri |
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