Quasi-Conical Quantum Dot: Electron States and Quantum Transitions

Kazaryan, É. M.; Petrosyan, L.; Shahnazaryan, V.; Sarkisyan, H. A.

doi:10.1088/0253-6102/63/2/20

Cited by 10 publications

(1 citation statement)

References 27 publications

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“…Returning to the variety of QD shapes, it would appear that the energy spectra of QD structures can be more easily manipulated if they have more distinct geometrical properties. The cone-shaped QDs, which have been extensively studied over many years [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ], serve as an example of such systems. The experimental research conducted by Schamp et al [ 18 ], on the fabrication of so-called “ice cream cone” structures, based on GaAs and GaSb, is especially interesting.…”

Section: Introductionmentioning

confidence: 99%

A Theoretical Study of Interband Absorption Spectra of Spherical Sector Quantum Dots under the Effect of a Powerful Resonant Laser

et al. 2023

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We explore the variation of interband absorption spectra of GaAs spherical sector quantum dots (QDs) in response to a strong resonant laser, using the renormalized wave function method. Even though a spherical sector QD appears identical to a section cut from a spherical QD, it contains a controllable additional spatial parameter, the apical angle, which results in radically different wave functions and energy levels of particles, and is anticipated to exhibit novel optical properties. The obtained findings reveal that the apical angle of the dot has a considerable effect on the interband absorption spectrum. With the increase in the dot apical angle, a significant redshift of the interband absorption peaks has been identified. Increasing the pump laser detuning and dot radius yields similar results. Especially when a powerful resonant laser with tiny detuning is utilized, a dynamical coupling between electron levels arises, resulting in the formation of new interband absorption peaks. These new peaks and the former ones were similarly influenced by the aforementioned parameters. Furthermore, it is thought that the new peaks, when stimulated by a suitable laser, will produce the entangled states necessary for quantum information.

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Section: Introductionmentioning

confidence: 99%

A Theoretical Study of Interband Absorption Spectra of Spherical Sector Quantum Dots under the Effect of a Powerful Resonant Laser

et al. 2023

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Quasi-conical Quantum Dot Helium

Khachatryan

Mkrtchyan

2022

Springer Proceedings in Physics

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Electron states in a sinusoidally deformed cylindrical quantum wire

Tshipa

2017

J Theor Appl Phys

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Electron states in a sinusoidally deformed cylindrical nanowire are probed within the effective mass approximation. The nanowire is immersed in a homogeneous magnetic field applied parallel to the axis of the wire. The sinusoidal deformity affects quantum properties of electrons considerably. The deformity introduces energy dependence on the axial position, enhancing (decreasing) confinement energies in regions where the radius is narrower (wider). Analysis shows that the magnetic field attenuates these sinusoidal deformity-induced distortions on electron quantum properties

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Quasi-Conical Quantum Dot: Electron States and Quantum Transitions

Cited by 10 publications

References 27 publications

A Theoretical Study of Interband Absorption Spectra of Spherical Sector Quantum Dots under the Effect of a Powerful Resonant Laser

A Theoretical Study of Interband Absorption Spectra of Spherical Sector Quantum Dots under the Effect of a Powerful Resonant Laser

Quasi-conical Quantum Dot Helium

Electron states in a sinusoidally deformed cylindrical quantum wire

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