Entanglement and the Kondo effect in serially coupled double quantum dots

A. Ramšak () and J. Mravlje

The European Physical Journal B: Condensed Matter and Complex Systems, 2008, vol. 61, issue 4, 419-425

Abstract: We investigate entanglement between electrons in serially coupled double quantum dots attached to noninteracting leads. In addition to local repulsion we consider the influence of capacitive inter-dot interaction. We show how the competition between extended Kondo and local singlet phases determines the ground state and thereby the entanglement. The results are additionally discussed in connection with the linear conductance through the system. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Keywords: 73.63.Kv Quantum dots; 03.67.Mn Entanglement production; characterization; and manipulation; 72.15.Qm Scattering mechanisms and Kondo effect (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1140/epjb/e2008-00089-9

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