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Resonating UHF Study on Electron Correlation in a Ground State of Two Electrons Confined in 2D Quantum Dot

Published online by Cambridge University Press:  08 February 2012

Takuma Okunishi  and
Kyozaburo Takeda
Takuma Okunishi
Affiliation:
Department of Electrical Engineering and Bioscience, Waseda University, Tokyo 169-8555, Japan
Kyozaburo Takeda
Affiliation:
Department of Electrical Engineering and Bioscience, Waseda University, Tokyo 169-8555, Japan
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Abstract

We theoretically study the spatial and temporal fluctuation of two electrons confined in a semiconductor quantum dot (QD). Eigenstates are determined by the resonating unrestricted Hartree-Fock (res-UHF) approach in order to take into account the electron correlation via the configuration interaction (CI). The time-dependent (TD) wave function is, then, expanded by the UHF solutions, and the CI treatment is combined with the TD Schrödinger equation (TD-CI). The present TD-CI approach has an advantage to study how the electron correlation fluctuates the multi-electron state spatially and/or temporally through the multi-reference description of many-electron wave functions.

Keywords

simulationelectronic structureelectrical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1423: Symposium RR – Dynamics in Confined Systems and Functional Interfaces , 2012 , mrsf11-1423-rr04-09
Copyright
Copyright © Materials Research Society 2012

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References

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