Resonating UHF study on electron correlation in a ground state of two electrons confined in 2D quantum dot

Takuma Okunishi; Kyozaburo Takeda

doi:10.1557/opl.2012.228

Resonating UHF study on electron correlation in a ground state of two electrons confined in 2D quantum dot

Takuma Okunishi, Kyozaburo Takeda

School of Advanced Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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.

Original language	English
Title of host publication	Dynamics in Confined Systems and Functional Interfaces
Pages	13-18
Number of pages	6
DOIs	https://doi.org/10.1557/opl.2012.228
Publication status	Published - 2012 Dec 1
Event	2011 MRS Fall Meeting - Boston, MA, United States Duration: 2011 Nov 28 → 2012 Dec 2

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1423
ISSN (Print)	0272-9172

Conference

Conference	2011 MRS Fall Meeting
Country/Territory	United States
City	Boston, MA
Period	11/11/28 → 12/12/2

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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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 Schr{\"o}dinger 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.",

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year = "2012",

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doi = "10.1557/opl.2012.228",

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N2 - 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.

AB - 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.

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BT - Dynamics in Confined Systems and Functional Interfaces

T2 - 2011 MRS Fall Meeting

Y2 - 28 November 2011 through 2 December 2012

ER -

Resonating UHF study on electron correlation in a ground state of two electrons confined in 2D quantum dot

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