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Renormalization group study of capacitively coupled double quantum dots

Abstract:

The numerical renormalization group is employed to study a double quantum (DQD) dot system consisting of two equivalent single-level dots, each coupled to its own lead and with a mutual capacitive coupling embodied in an interdot interaction U', in addition to the intradot Coulomb interaction U. We focus on the regime with two electrons on the DQD, and the evolution of the system on increasing U'/U. The spin-Kondo effect arising for U'=0 (SU(2) x SU(2)) is found to persist robustly with incre...

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Publication status:
Published

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Publisher copy:
10.1088/0953-8984/18/29/001

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Role:
Author
Journal:
J. Phys.: Condens. Matter
Volume:
18
Issue:
29
Pages:
6545
Publication date:
2006-08-07
DOI:
EISSN:
1361-648X
ISSN:
0953-8984
URN:
uuid:80583378-4fd1-43fc-a865-afd0df8df9bf
Source identifiers:
40028
Local pid:
pubs:40028
Language:
English
Keywords:

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