Theoretical approach for the description of a single quantum dot using geometry

Lira, Francisco A.G. de; Silva, Edilberto O.

doi:10.1016/j.physe.2022.115617

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…In quantum wires, elongated and thin structures, this potential may be relevant for studying the behavior of electrons along the wire, considering the specific geometry of the system. In recent years, similar forms of potentials have been used to study various systems in different physical contexts, including the study of optical properties [39][40][41][42][43][44][45][46] (see also [47] that applies the exact potential as in equation (4) to study optical properties of a 2D QR).…”

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Rotating effects on the photoionization cross-section of a 2D quantum ring

Pereira,

Azevedo,

Pereira

et al. 2024

Commun. Theor. Phys.

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In this article, we investigate the nonrelativistic quantum motion of a charged particle within a rotating frame, taking into account the Aharonov-Bohm (AB) effect and a uniform magnetic field. Our analysis entails the derivation of the equation of motion and the corresponding radial equation to describe the system. Solving the resulting radial equation enables us to determine the eigenvalues and eigenfunctions, providing a clear expression for the energy levels. Furthermore, our numerical analysis highlights the substantial influence of rotation on both energy levels and optical properties. Specifically, we evaluate the photoionization cross-section (PCS) with and without the effects of rotation. To elucidate the impact of rotation on the photoionization process of the system, we present graphics that offer an appealing visualization of the intrinsic nature of the physics involved.

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confidence: 99%

Rotating effects on the photoionization cross-section of a 2D quantum ring

Pereira,

Azevedo,

Pereira

et al. 2024

Commun. Theor. Phys.

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Thermodynamic Properties of an Electron Gas in a Two-Dimensional Quantum Dot: An Approach Using Density of States

Pereira,

Silva

2024

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Thermodynamic Properties of an Electron Gas in a Two-Dimensional Quantum Dot: An Approach Using Density of States

Pereira,

Silva

2024

Quantum Reports

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Potential applications of quantum dots in the nanotechnology industry make these systems an important field of study in various areas of physics. In particular, thermodynamics has a significant role in technological innovations. With this in mind, we studied some thermodynamic properties in quantum dots, such as entropy and heat capacity, as a function of the magnetic field over a wide range of temperatures. The density of states plays an important role in our analyses. At low temperatures, the variation in the magnetic field induces an oscillatory behavior in all thermodynamic properties. The depopulation of subbands is the trigger for the appearance of the oscillations.

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Theoretical approach for the description of a single quantum dot using geometry

Cited by 4 publications

References 31 publications

Rotating effects on the photoionization cross-section of a 2D quantum ring

Rotating effects on the photoionization cross-section of a 2D quantum ring

Thermodynamic Properties of an Electron Gas in a Two-Dimensional Quantum Dot: An Approach Using Density of States

Thermodynamic Properties of an Electron Gas in a Two-Dimensional Quantum Dot: An Approach Using Density of States

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