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arXiv · 1909.02292

Kondo Temperature and High to Low Temperature Crossover in Quantum Dots

Václav Janiš·Antonín Klíč
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Abstract

Kondo temperature is standardly defined from the local zero-temperature susceptibility in the regime of strong electron correlations as a new scale controlling the low-temperature asymptotics of thermodynamic quantities. We show by using a two-particle self-consistent theory that the Kondo temperature can be identified as a crossover temperature at which the zero-temperature quantum fluctuations equal the thermal ones in the electron-hole correlation function. The high-temperature Curie-Weiss susceptibility is shown to go over to the Pauli one below the Kondo temperature.

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Václav Janiš, Antonín Klíč. 2019-09-05. Kondo Temperature and High to Low Temperature Crossover in Quantum Dots. https://arxiv.org/abs/1909.02292

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