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cond-mat.str-el2003★ 53 cited
Quantum phase transition of Ising-coupled Kondo impurities
Markus Garst, Stefan Kehrein, Thomas Pruschke +2
We investigate a model of two Kondo impurities coupled via an Ising interaction. Exploiting the mapping to a generalized single-impurity Anderson model, we establish that the model…
cond-mat.mes-hall2003
Exploiting environmental resonances to enhance qubit quality factors
S. Kleff, S. Kehrein, J. von Delft
We discuss dephasing times for a two-level system (including bias) coupled to a damped harmonic oscillator. This system is realized in measurements on solid-state Josephson qubits.…