Interacting electrons in a 2D quantum dot

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Akman N., Tomak M.

PHYSICA B, cilt.262, ss.317-321, 1999 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 262
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1016/s0921-4526(98)01159-4
  • Dergi Adı: PHYSICA B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.317-321
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The exact numerical diagonalization of the Hamiltonian of a 2D circular quantum dot is performed for 2, 3, and 4 electrons. The results an compared with those of the perturbation theory. Our numerical results agree reasonably well for small values of the dimensionless coupling constant lambda = a/a(B) where a is the dot radius and a(B) is the effective Bohr radius. Exact diagonalization results are compared with the classical predictions, and they are found to be almost coincident for large lambda values. (C) 1999 Elsevier Science B.V. All rights reserved.