Document Zbl 1435.81276

Mbadjoun, B. Tchana; Ema’a, J. M. Ema’a; Abiama, P. Ele; Ben-Bolie, G. H.; Ateba, P. Owono

Effect of gravity and electromagnetic field on the spectra of cylindrical quantum dots together with AB flux field. (English) Zbl 1435.81276

Mod. Phys. Lett. A 35, No. 12, Article ID 2050092, 21 p. (2020).

Summary: In this work, we study the spectral properties of electron quantum dots (QDs) confined in 2D parabolic harmonic oscillator influenced by gravity, external uniform electromagnetic field together with an Aharonov-Bohm (AB) flux field. Our calculations are based on the Nikiforov-Uvarov method and we obtain exact solutions for the energy levels and normalized wave functions. The interband optical absorption QDs of the parabolic spherical shape in GaAs is studied theoretically and the total optical absorption coefficient has been calculated by using the energy eigenvalues spectra and the corresponding wave functions.

MSC:

81V65	Quantum dots as quasi particles
81V17	Gravitational interaction in quantum theory
81V10	Electromagnetic interaction; quantum electrodynamics

Keywords:

parabolic harmonic oscillator; quantum dots; gravity; electromagnetic field; Aharonov-Bohm flux field; light interband transition; threshold frequency of absorption

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