Detecting Kondo Entanglement by Electron Conductance.

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ID: 97144
2018
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Abstract
Quantum entanglement between an impurity spin and electrons nearby is a key property of the single-channel Kondo effects. We show that the entanglement can be detected by measuring electron conductance through a double quantum dot in an orbital Kondo regime. We derive a relation between the entanglement and the conductance, when the SU(2) spin symmetry of the regime is weakly broken. The relation reflects the universal form of many-body states near the Kondo fixed point. Using it, the spatial distribution of the entanglement-hence, the Kondo cloud-can be detected, with breaking of the symmetry spatially nonuniformly by electrical means.
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yoo2018detectingphysical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yoo, Gwangsu;Lee, S-S B;Sim, H-S;
Journal physical review letters
Year 2018
DOI
10.1103/PhysRevLett.120.146801
URL
Keywords
probabilities born’s rule decoherence quantum darwinism quantum jumps

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