248 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- R. Casana71 · h 23
- M. M. Ferreira4 profiles69 · h 19
- Edilberto O. Silva3 profiles59 · h 18
- L. B. Castro3 profiles36 · h 17
- M. Schreck27 · h 19
- F. M. Andrade22 · h 17
- F. Simas21 · h 11
- A. R. Gomes20 · h 19
- C. Filgueiras19 · h 17
- E. da Hora3 profiles17 · h 5
- D. Bazeia2 profiles16 · h 40
- J. Reis2 profiles16 · h 8
- Universidade Federal da ParaíbaBR41 papers
- Universidade Estadual Paulista (Unesp)BR27 papers
- Instituto Federal do MaranhãoBR26 papers
- Universidade Federal do CearáBR24 papers
- Universidade Estadual de Ponta GrossaBR23 papers
- Universidade Federal de Campina GrandeBR21 papers
- Universidade de São PauloBR16 papers
- Universidade Federal de LavrasBR16 papers
- Universidade Federal do Espírito SantoBR16 papers
- Universidade Federal de Santa CatarinaBR15 papers
- Centro Brasileiro de Pesquisas FísicasBR14 papers
- Universidade Estadual da Região Tocantina do MaranhãoBR12 papers
37 papers · 1 filter
Scattering, bound states, and resonances in the one-dimensional Dirac equation via supersymmetric quantum mechanics
Camila C. Soares, Luis B. Castro, Antonio S. de Castro
We develop a unified treatment of scattering and discrete spectra for the one-dimensional Dirac equation with scalar and vector interactions. Under the spin-symmetry condition, the…
Exponentially accelerated relaxation and quantum Mpemba effect in open quantum systems
Emerson Lima Caldas, Diego Paiva Pires
We investigate the quantum Mpemba effect in the relaxation of open quantum systems whose effective dynamics is described by Davies maps. We introduce a class of unitary transformat…
Quantum speed limits based on Jensen-Shannon and Jeffreys divergences for general physical processes
Jucelino Ferreira de Sousa, Diego Paiva Pires
We discuss quantum speed limits (QSLs) for finite-dimensional quantum systems undergoing general physical processes. These QSLs were obtained using two families of entropic measure…
Generalized Entropic Quantum Speed Limits
Jucelino Ferreira de Sousa, Diego Paiva Pires
We present a class of generalized entropic quantum speed limits based on --Rényi relative entropy, a real-valued, contractive, two-parameter family of distinguishability meas…
On the singular position-dependent mass
F. C. E. Lima, F. M. Belchior, C. A. S. Almeida
Revisiting the issue associated with Position-Dependent Mass (PDM), we reaffirm that the appropriate framework for addressing a generic PDM is the symmetrization proposed by BenDan…
Remarks on the ()-dimensional Duffin-Kemmer-Petiau oscillator in an external magnetic field
Andrés G. Jirón, Luis B. Castro, Angel E. Obispo +1
This work re-examines the issue of spin- particles in a ()-dimensional Duffin-Kemmer-Petiau oscillator (DKPO) in the presence of an external magnetic field. By following th…
Quantum Speed Limits Based on Schatten Norms: Universality and Tightness
Alberto J. B. Rosal, Diogo O. Soares-Pinto, Diego Paiva Pires
We discuss quantum speed limits (QSLs) for finite-dimensional quantum systems undergoing general physical processes. These QSLs were obtained using Schatten -norms, firstly expl…
Cosmic string influence on a 2D hydrogen atom and its relationship with the Rytova-Keldysh logarithmic approximation in semiconductors
Frankbelson dos S. Azevedo, Izael A. Lima, Gallileu Genesis +2
A two-dimensional hydrogen atom offers a promising alternative for describing the quantum interaction between an electron and a proton in the presence of a straight cosmic string.…
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…
Experimental Investigation of Geometric Quantum Speed Limits in an Open Quantum System
Diego Paiva Pires, Eduardo R. deAzevedo, Diogo O. Soares-Pinto +2
We studied geometric quantum speed limits (QSL) of a qubit subject to decoherence in an ensemble of chloroform molecules in a Nuclear Magnetic Resonance experiment. The QSL is a fu…
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…
Comment on "Relativistic quantum oscillator model under the effects of the violation of Lorentz symmetry by an arbitrary fixed vector field'' by Faizuddin Ahmed
Andrés G. Jirón Vicente, Luis B. Castro, Angel E. Obispo
We obtain the correct expressions for the energy and normalized eigenfunctions for a spin-zero relativistic quantum oscillator model under the violation of Lorentz symmetry defined…
Fidelity-based distance bounds for -qubit approximate quantum error correction
Guilherme Fiusa, Diogo O. Soares-Pinto, Diego Paiva Pires
The Eastin-Knill theorem is a central result of quantum error correction theory and states that a quantum code cannot correct errors exactly, possess continuous symmetries, and imp…
Thermodynamics of a quantum ring modified by Lorentz violation
A. A. Araújo Filho, H. Hassanabadi, J. A. A. S. Reis +1
In this work, we investigate the consequences of Lorentz-violating terms in the thermodynamic properties of a 1-dimensional quantum ring. Particularly, we use the ensemble theory t…
Mixedness timescale in non-Hermitian quantum systems
Diego Paiva Pires, Tommaso Macrì
We discuss the short-time perturbative expansion of the linear entropy for finite-dimensional quantum systems whose dynamics can be effectively described by a non-Hermitian Hamilto…
Quantum gases on a torus
A. A. Araújo Filho, J. A. A. S. Reis, Subir Ghosh
This manuscript is aimed at studying the thermodynamic properties of quantum gases confined to a torus. To do that, we consider \textit{noninteracting} gases within the grand canon…
Coherence behavior of strongly coupled bosonic modes
Jucelino F. Sousa, Carlos H. S. Vieira, Jonas F. G. Santos +1
We study the effect of the intermode coupling in the generation of coherence when two bosonic modes are bilinearly coupled. We consider the case for which the two modes are weakly…
Unified entropies and quantum speed limits for nonunitary dynamics
Diego Paiva Pires
We discuss a class of quantum speed limits (QSLs) based on unified quantum ()-entropy for nonunitary physical processes. The bounds depend on both the Schatten speed and the s…
Effects of rotation and Coulomb type potential on the spin-1/2 Aharonov-Bohm problem
Márcio M. Cunha, Fabiano M. Andrade, Edilberto O. Silva
In this work, we investigate how both rotation and a Coulomb potential affect the quantum mechanical description of a spin- particle in the presence of the Aharonov-Bohm effec…
Probing phase transitions in non-Hermitian systems with Multiple Quantum Coherences
Diego Paiva Pires, Tommaso Macrì
Understanding the interplay between quantum coherence and non-Hermitian features would enable the devising of quantum technologies based on dissipative systems. In turn, quantum co…
Relative purity, speed of fluctuations, and bounds on equilibration times
Diego Paiva Pires, Thiago R. de Oliveira
We discuss the local equilibration of closed systems using the relative purity, a paradigmatic information-theoretic distinguishability measure that finds applications ranging from…
Dynamics of quantum resources in regular and Majorana fermion systems
Diego Paiva Pires, Diogo O. Soares-Pinto, E. Vernek
In recent years, the reassessment of quantum physical phenomena under the framework of resource theories has triggered the design of novel quantum technologies that take advantage…
Influence of rotation on the electronic states, magnetization and persistent current in 1D quantum ring
Luís Fernando C. Pereira, Márcio M. Cunha, Edilberto O. Silva
Inertial effects can affect several properties of physical systems. In particular, in the context of quantum mechanics, such effects have been studied in diverse contexts. In this…
Tripartite entanglement: Foundations and applications
Márcio M. Cunha, Alejandro Fonseca, Edilberto O. Silva
We review some current ideas about tripartite entanglement, the case representing the next level of complexity beyond the simplest one (though far from trivial), namely the biparti…