Abstract
We demonstrate that external irradiation introduces decoherence in the spin states of a quantum dot. This effect cuts off the Kondo anomaly in conductance even at zero temperature. We evaluate the dependence of the dc conductance in the Kondo regime on the power of the irradiation, this dependence being determined by the decoherence.
- Received 2 April 1999
DOI:https://doi.org/10.1103/PhysRevLett.83.384
©1999 American Physical Society
