57 citations · 668 across the 37 of their papers we have counts for
37 papers
Modifications in the photoionization cross-section of a quantum dot with position-dependent effective mass
Carlos Magno O. Pereira, Denise Assafrão, Frankbelson dos S. Azevedo +3
In this work, we investigate the photoionization cross-section of an electron confined in a quantum dot, considering the position-dependent variation of the effective mass through…
Nonlinear refractive index changes and absorption coefficients in mesoscopic ring induced by variable effective mass
Denise Assafrao, A. G. de Lima, Edilberto O. Silva +1
This study explores the linear and nonlinear optical absorption coefficients (OAC) and refractive index changes (RIC) in quantum dot and quantum antidot systems with a position-dep…
Quantum heat machines enabled by twisted geometry
Cleverson Filgueiras, Moises Rojas, Edilberto O. Silva +1
In this paper, we analyze the operation of an Otto cycle heat machine driven by a non-interacting two-dimensional electron gas on a twisted geometry. We show that due to both the e…
Exact and approximate bound state solutions of the Schrödinger equation with a class of Kratzer-type potentials in the global monopole spacetime
Saulo S. Alves, Frankbelson dos S. Azevedo, Cleverson Filgueiras +1
This work investigates the motion of a non-relativistic charged particle within the spacetime of a global monopole. We introduce the Schrödinger equation to describe the particle's…
Optical and electronic properties of a two-dimensional quantum ring under rotating effects
Daniel F. Lima, Frankbelson dos S. Azevedo, Luís Fernando C. Pereira +2
This work presents a study on the nonrelativistic quantum motion of a charged particle in a rotating frame, considering the Aharonov-Bohm effect and a uniform magnetic field. We de…
Two Coupled Double Quantum Dots Systems as an working substance for Heat Machines
Jefferson Luan D. de Oliveira, Moises Rojas, Cleverson Filgueiras
This paper presents a conceptual design for quantum heat machines using a pair of coupled double quantum dots (DQDs), each DQD with an excess electron to interact, as an working su…