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Kondo Temperature in Multilevel Quantum Dots

Nearly five decades after its discovery, the Kondo effect is an archetype many-body phenomenon that continues to captivate the imagination of condensed matter theorists and experimentalists alike. In this talk we will develop a general method to evaluate the Kondo temperature in a multilevel quantum dot that is weakly coupled to conducting leads.
Our theory reveals that the Kondo temperature is strongly enhanced when the energy-level spacing in the dot is smaller than the charging energy. We will comment on the experimental implications of our work.