Theory of quantum dot helium

Daniela Pfannkuche; Rolf R. Gerhardts; Peter A. Maksym; Vidar Gudmundsson

doi:10.1016/0921-4526(93)90141-R

Theory of quantum dot helium

Daniela Pfannkuche^*, Rolf R. Gerhardts, Peter A. Maksym, Vidar Gudmundsson

^*Corresponding author for this work

Faculty of Physical Sciences

Research output: Contribution to journal › Article › peer-review

89 Citations (Scopus)

Abstract

The competition between the Coulomb interaction and the binding forces due to the confinement and the magnetic field induces transitions of the ground state of quantum dots with few electrons. We demonstrate that for quantum dot helium these transitions occur between states with differently strong correlations between the electrons. By the response of quantum dot helium to far infrared radiation we exemplify that a proper treatment of the correlation effects may be essential for a correct interpretation of experimental data on quantum dots with few electrons.

Original language	English
Pages (from-to)	6-15
Number of pages	10
Journal	Physica B: Physics of Condensed Matter
Volume	189
Issue number	1-4
DOIs	https://doi.org/10.1016/0921-4526(93)90141-R
Publication status	Published - Jun 1993

Bibliographical note

Funding Information:
We acknowledge stimulating discussions with B. Meurer and D. Heitmann. Calculations resulting in fig. 3 were performed by K. Neurohr. This research was supported in part by the Icelandic Natural Science Foundation, the Bun-desminister f/Jr Forschung und Technologie under contract number TK0375/2 and the UK Science and Engineering Research Council.

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title = "Theory of quantum dot helium",

abstract = "The competition between the Coulomb interaction and the binding forces due to the confinement and the magnetic field induces transitions of the ground state of quantum dots with few electrons. We demonstrate that for quantum dot helium these transitions occur between states with differently strong correlations between the electrons. By the response of quantum dot helium to far infrared radiation we exemplify that a proper treatment of the correlation effects may be essential for a correct interpretation of experimental data on quantum dots with few electrons.",

author = "Daniela Pfannkuche and Gerhardts, {Rolf R.} and Maksym, {Peter A.} and Vidar Gudmundsson",

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doi = "10.1016/0921-4526(93)90141-R",

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AU - Pfannkuche, Daniela

AU - Gerhardts, Rolf R.

AU - Maksym, Peter A.

AU - Gudmundsson, Vidar

N1 - Funding Information: We acknowledge stimulating discussions with B. Meurer and D. Heitmann. Calculations resulting in fig. 3 were performed by K. Neurohr. This research was supported in part by the Icelandic Natural Science Foundation, the Bun-desminister f/Jr Forschung und Technologie under contract number TK0375/2 and the UK Science and Engineering Research Council.

PY - 1993/6

Y1 - 1993/6

N2 - The competition between the Coulomb interaction and the binding forces due to the confinement and the magnetic field induces transitions of the ground state of quantum dots with few electrons. We demonstrate that for quantum dot helium these transitions occur between states with differently strong correlations between the electrons. By the response of quantum dot helium to far infrared radiation we exemplify that a proper treatment of the correlation effects may be essential for a correct interpretation of experimental data on quantum dots with few electrons.

AB - The competition between the Coulomb interaction and the binding forces due to the confinement and the magnetic field induces transitions of the ground state of quantum dots with few electrons. We demonstrate that for quantum dot helium these transitions occur between states with differently strong correlations between the electrons. By the response of quantum dot helium to far infrared radiation we exemplify that a proper treatment of the correlation effects may be essential for a correct interpretation of experimental data on quantum dots with few electrons.

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DO - 10.1016/0921-4526(93)90141-R

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JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - 1-4

ER -

Theory of quantum dot helium

Abstract

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