Leading temperature dependence of the conductance in Kondo-correlated quantum dots
Using renormalized perturbation theory in the Coulomb repulsion, we derive an analytical expression for the leading term in the temperature dependence of the conductance through a quantum dot described by the impurity Anderson model, in terms of the renormalized parameters of the model. Taking these...
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/97207 |
| Acceso en línea: | http://hdl.handle.net/11336/97207 |
| Access Level: | acceso abierto |
| Palabra clave: | ANDERSON MODEL KONDO EFFECT QUANTUM DOTS RENORMALIZED PERTURBATION THEORY https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| Sumario: | Using renormalized perturbation theory in the Coulomb repulsion, we derive an analytical expression for the leading term in the temperature dependence of the conductance through a quantum dot described by the impurity Anderson model, in terms of the renormalized parameters of the model. Taking these parameters from the literature, we compare the results with published ones calculated using the numerical renormalization group obtaining a very good agreement. The approach is superior to alternative perturbative treatments. We compare in particular to the results of a simple interpolative perturbation approach. |
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