Perturbative theory of the non-equilibrium singlet-triplet transition - Condensed Matter > Strongly Correlated ElectronsReportar como inadecuado




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Abstract: We study equilibrium and non-equilibrium properties of a two-level quantumdot close to the singlet-triplet transition. We treat the on-site Coulombinteraction and Hund-s rule coupling perturbatively within the Keldyshformalism. We compute the spectral functions and the differential conductanceof the dot. For moderate interactions our perturbative approach captures theKondo effect and many of the experimentally observed properties.



Autor: B. Horvath, B. Lazarovits, G. Zarand

Fuente: https://arxiv.org/







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