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The time development of the Kondo effect is theoretically investigated by studying a quantum dot suddenly shifted into the Kondo regime by a change of voltage on a nearby gate. Using time-dependent versions of both the Anderson and Kondo Hamiltonians, it is shown that after a time t following the voltage shift, the form of the Kondo resonance matches the time-independent resonance at an effective temperature Teff0ex0ex=0ex0exT/tanh(πTt/2). Relevance of the buildup of the Kondo resonance to the transport current through a quantum dot is demonstrated.
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Nordlander et al. (1999) studied this question.
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