Influence of confining potentials on the exchange coupling in double quantum dots

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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We report simple expressions for the exchange coupling in double quantum dots calculated within the Heitler-London and the Hund-Mulliken approximations using four different confining potentials. At large interdot distances and at large magnetic fields, the exchange coupling does not depend significantly on the details of the potentials. In contrast, at low fields and short distances, different behaviors of the exchange coupling can be attributed to particular features of the potentials. Our results may be useful as guidelines in numerical studies and in the modeling of experiments.
Original languageEnglish
JournalPhysical Review B (Condensed Matter and Materials Physics)
Publication date2010
Volume81
Issue19
Pages193406
ISSN1098-0121
DOIs
StatePublished

Bibliographical note

Copyright (2010) American Physical Society

CitationsWeb of Science® Times Cited: 1
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