Level fluctuations and many-body effects in disorder-free quantum dots

Min Chul Cha, Sung Ryul Yang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We have investigated whether many-body effects can induce significant level fluctuations in a disorder-free quantum dot. The closed energy shell structures and relaxation of the Hartree-Fock (HF) potentials are found to play a significant role. The level degeneracy consistent with the rotational symmetry of the confining potential determines the structure of the energy shells. A closed shell state of a dot can give rise to large fluctuations. When a strong magnetic field is present the shell structure is absent and fluctuations are significantly reduced.

Original languageEnglish
Pages (from-to)1720-1723
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume61
Issue number3
Publication statusPublished - 2000 Dec 1

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Semiconductor quantum dots
quantum dots
disorders
Magnetic fields
confining
energy
symmetry
magnetic fields

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Level fluctuations and many-body effects in disorder-free quantum dots. / Cha, Min Chul; Yang, Sung Ryul.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 61, No. 3, 01.12.2000, p. 1720-1723.

Research output: Contribution to journalArticle

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