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Destruction of the Kondo effect by a local measurement by M.I. Katsnelson; V.V. Dobrovitski; H.A. De Raedt; B.N. Harmon is a Physics and Astronomy article available to read on EtoBox.

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We show that a local measurement which decoheres the Kondo center in a Kondo system, suppresses the Abrikosov-Suhl resonance and destroys the Kondo effect. This happens due to elimination of the entanglement between the Kondo center and the conduction electrons, and differs essentially from smearing of the resonance by dissipation. Considering decoherence by a spin bath, we predict that the Kondo effect disappears when the Kondo temperature becomes smaller than the coupling with a bath. Suppression of the Kondo effect can be detected in experiments on "quantum corrals" or quantum dots doped by impurities with internal degrees of freedom.

Who reads Destruction of the Kondo effect by a local measurement?

Author

M.I. Katsnelson; V.V. Dobrovitski; H.A. De Raedt; B.N. Harmon

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0375-9601)

Published

2003

Language

EN

Field

Physics and Astronomy (Physical Sciences)