57 citations · 668 across the 37 of their papers we have counts for
13 papers · 1 filter
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…
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…
Thermal entanglement and correlated coherence in two coupled double quantum dots systems
Cleverson Filgueiras, Onofre Rojas, Moises Rojas
In this work, we investigate the thermal quantum correlations in two coupled double semiconductor charge qubits. This is carried out by deriving analytical expressions for both the…
Quantum particle motion on the surface of a helicoid in the presence of harmonic oscillator
Marcos C. R. Ribeiro, Márcio M. Cunha, Cleverson Filgueiras +1
The geometric potential in quantum mechanics has been attracted attention recently, providing a formalism to investigate the influence of curvature in the context of low-dimensiona…
On the effects of an impurity in an Ising- diamond chain on the thermal entanglement, on the quantum coherence and on the quantum teleportation
Marcos Freitas, Cleverson Filgueiras, Moises Rojas
The effects of an impurity plaquette on the thermal quantum correlations measurement by the concurrence, on the quantum coherence quantified by the recently proposed -norm o…
Quantum heat machines enabled by the electronic effective mass
Cleverson Filgueiras
In this letter, we analyze a conceptual design for the operation of an Otto cycle heat machine driven by adiabatic modifications on the electronic effective mass. Such tailoring of…
Quantum motion of a spinless particle in curved space: A viewpoint of scattering theory
Fabiano M. Andrade, Augusto R. Chumbes, Cleverson Filgueiras +1
In this work, we study the scattering of a spinless charged particle constrained to move on a curved surface in the presence of the Aharonov-Bohm potential. We begin with the equat…
Relativistic Quantum Dynamics on a Double Cone
Felipe Gomes, Edilberto Silva, Jonas Lima +2
In this paper, we study the relativistic quantum problem of a particle constrained to a double cone surface. For this purpose, we build the Dirac equation in a curved space using t…
Quantum motion of a point particle in the presence of the Aharonov--Bohm potential in curved space
Edilberto O. Silva, Sérgio C. Ulhoa, Fabiano M. Andrade +2
The nonrelativistic quantum dynamics of a spinless charged particle in the presence of the Aharonov--Bohm potential in curved space is considered. We chose the surface as being a c…
Nonrelativistic quantum dynamics on a cone with and without a constraining potential
C. Filgueiras, E. O. Silva, F. M. Andrade
In this paper we investigate the bound state problem of nonrelativistic quantum particles on a conical surface. This kind of surface appears as a topological defect in ordinary sem…
On Aharonov-Casher bound states
E. O. Silva, F. M. Andrade, H. Belich +1
In this work bound states for the Aharonov-Casher problem are considered. According to Hagen's work on the exact equivalence between spin-1/2 Aharonov-Bohm and Aharonov-Casher effe…
On the quantum dynamics of a point particle in conical space
C. Filgueiras, F. Moraes
A quantum neutral particle, constrained to move on a conical surface, is used as a toy model to explore bound states due to both a inverse squared distance potential and a -func…