Abstract

PORTACIO, A.A.; RASERO, D. A.  and  BAQUERO, M. Urango. 1s-like, 2p_-like and 2p ₊ -like States of a Hydrogenoid Impurity in a Cylindrical Quantum Dot Under the Action of an Applied Magnetic Field. Ciencia en Desarrollo [online]. 2023, vol.14, n.2, pp.69-73.  Epub July 19, 2023. ISSN 0121-7488.  https://doi.org/10.19053/01217488.v14.n2.2023.14354.

The quantum states of a cylindrical quantum dot (CDQ) of GaAs/Ga0.6Al0,4As are studied theoretically with a hydrogen-like impurity inside and under the action of a uniform magnetic field, applied in the axial direction of the cylinder. Using the variational method, the energies and wave functions of the impurity states, 1s-like, 2p_ -like and 2p +-like, when she moves inside the CQD. It was found that there is degeneracy in the impurity energy for the 2p_ -like and 2p +-like states in the absence of a magnetic field. This degeneracy is broken only by applying a magnetic field, indicating a Zeeman effect in the system, thus, the variation of the intensity of the magnetic field allows to tune the resonance condition of two photons.

Keywords : Cylindrical quantum dot; hydrogenoid impurity; magnetic field.

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