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Phase Evolution in a Kondo Correlated System

Yang Ji·M. Heiblum·D. Sprinzak·D. Mahalu·Hadas Shtrikman
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Abstract

The coherence and phase evolution of electrons in a mesoscopic system in the Kondo correlated regime were studied. The Kondo effect, in turn, is one of the most fundamental many-body effects where a localized spin interacts with conduction electrons in a conductor. Results were obtained by embedding a quantum dot (QD) in a double path electronic interferometer and measuring interference of electron waves. The Phase was found to evolve in a range twice as large as the theoretically predicted one. Moreover, the phase proved to be highly sensitive to the onset of Kondo correlation, thus serving as a new fingerprint of the Kondo effect.

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Yang Ji, M. Heiblum, D. Sprinzak, D. Mahalu, Hadas Shtrikman. 2000-07-26. Phase Evolution in a Kondo Correlated System. https://doi.org/10.1126/science.290.5492.779

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