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

Min Chul Cha, S. Eric Yang

Research output: Contribution to journalArticlepeer-review


We have investigated whether many-body effects can induce significant level fluctuations in a (Formula presented)-(Formula presented) 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
Issue number3
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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