2 papers
cond-mat.str-el2010
FLEX-description of the spectral functions near singlet-triplet transition
Bertalan Horváth
In a previous article, we have investigated the non-equilibrium two-level Anderson model with a simple iterative perturbation theory. Here we use here a more sophisticated perturba…
cond-mat.str-el2009
Perturbative theory of the non-equilibrium singlet-triplet transition
B. Horvath, B. Lazarovits, G. Zarand
We study equilibrium and non-equilibrium properties of a two-level quantum dot close to the singlet-triplet transition. We treat the on-site Coulomb interaction and Hund's rule cou…