Ground state energy fluctuations of interacting electrons in disordered quantum dots

Mikio Eto

doi:10.1016/S0921-4526(99)02961-0

Ground state energy fluctuations of interacting electrons in disordered quantum dots

Mikio Eto

Department of Physics

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

Abstract

The distribution of the peak spacings of Coulomb oscillation is theoretically investigated in disordered quantum dots. Taking account of the electron-electron interaction by the perturbation, we show that a pair-type (BCS-type) correlation plays an important role in determining the distribution, which could deviate drastically from the prediction of the random matrix theory. A possible mechanism of a sharp peak structure is proposed, which is in accordance with numerical results.

Original language	English
Pages (from-to)	1770-1771
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART II
DOIs	https://doi.org/10.1016/S0921-4526(99)02961-0
Publication status	Published - 2000 Jan 1

Keywords

Coulomb oscillation
Level statistics
Quantum dots
Wigner distribution

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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Cite this

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AB - The distribution of the peak spacings of Coulomb oscillation is theoretically investigated in disordered quantum dots. Taking account of the electron-electron interaction by the perturbation, we show that a pair-type (BCS-type) correlation plays an important role in determining the distribution, which could deviate drastically from the prediction of the random matrix theory. A possible mechanism of a sharp peak structure is proposed, which is in accordance with numerical results.

KW - Coulomb oscillation

KW - Level statistics

KW - Quantum dots

KW - Wigner distribution

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART II

ER -

Ground state energy fluctuations of interacting electrons in disordered quantum dots

Abstract

Keywords

ASJC Scopus subject areas

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