A variational approach with squeezed-states for the polaronic effects in quantum dots

Kervan N., Altanhan T., Chatterjee A.

PHYSICS LETTERS A, cilt.315, sa.3-4, ss.280-287, 2003 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 315 Sayı: 3-4
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/s0375-9601(03)01011-9
  • Dergi Adı: PHYSICS LETTERS A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.280-287
  • Anahtar Kelimeler: polarons, quantum dots, ELECTRON-PHONON INTERACTION, PARABOLIC CONFINEMENT, MAGNETIC-FIELD, OPTICAL POLARON, EXCITED-STATES, ENERGY-LEVELS, GROUND-STATE, ABSORPTION, LEVEL, WIRES
  • Ankara Üniversitesi Adresli: Hayır

Özet

The polaronic effects for an electron confined in a parabolic quantum dot are investigated by means of squeezed states. A variational calculation is performed to obtain the polaronic correction to the ground and the first-excited state energies of an electron interacting with optical-phonons. It is shown that the squeezing of the phonon state leads to a significant increase in the polaronic effects in a quantum dot. (C) 2003 Elsevier B.V. All rights reserved.