17 citations · 44 across the 10 of their papers we have counts for
10 papers
Relativistic Effects in Spin Correlations Induced by QED Scattering and Wigner Rotations
Juan D. Fonseca, B. Hiller, I. G. da Paz +1
We study the relativistic nature of the interactions that, at tree level, generate spin correlations between two electrons in Møller scattering, as well as in an extended process i…
Fractional Angular Momenta in Electron Beams and Hydrogen-Like Atoms
Robert Ducharme, Irismar G. da Paz
In an earlier letter [Ducharme \textit{et al.} Phys. Rev. Lett. \textbf{126}, 134803 (2021)], a solution to the Dirac equation for a relativistic Gaussian electron beam showed that…
Parameter estimation in an anisotropic expanding spacetime
O. P. de Sá Neto, I. G. da Paz, P. R. S. Carvalho +1
In this work, we investigate how the anisotropy affects the cosmological parameters estimation. Here the anisotropy is incorporated as a small gravitational disturbance. We calcula…
Gouy phase of type-I SPDC-generated biphotons
F. C. V. de Brito, I. G. da Paz, Brigitte Hiller +2
We consider a double Gaussian approximation to describe the wavefunction of twin photons (also called a biphoton) created in a nonlinear crystal via a type-I spontaneous parametric…
Measuring a QED cross section via a witness particle
Jonas B. Araujo, B. Hiller, I. G. da Paz +2
We consider a QED scattering (), in which is initially entangled with a third particle () that does not participate directly in the scattering. The effect…
Fractional Angular Momenta, Gouy and Berry phases in Relativistic Bateman-Hillion-Gaussian Beams of Electrons
Robert J. Ducharme, Irismar Gonçalves da Paz, Armen G. Hayrapetyan
A new Bateman-Hillion solution to the Dirac equation for a relativistic Gaussian electron beam taking explicit account of the -position of the beam waist is presented. This solu…
Exotic looped trajectories via quantum marking
J. G. G. de Oliveira, Gustavo de Souza, L. A. Cabral +2
We provide an analytical and theoretical study of exotic looped trajectories (ELTs) in a double-slit interferometer with quantum marking. We use an excited Rydberg-like atom and wh…
Exotic looped trajectories in double-slit experiments with matter waves
Carlos Vieira, Helder Alexander, Gustavo de Souza +2
We study the observation of exotic looped trajectories in double-slit experiments with matter waves. We consider the relative intensity at as a function of the time-of-flight…
Poisson's spot and Gouy phase
I. G. da Paz, Rodolfo Soldati, L. A. Cabral +2
Recently there have been experimental results on Poisson spot matter wave interferometry followed by theoretical models describing the relative importance of the wave and particle…
Lorentz Covariant Quantum 4-Potential and Orbital Angular Momentum for the Transverse Confinement of Matter Waves
Robert J. Ducharme, Irismar Gonçalves da Paz
In two recent papers exact Hermite-Gaussian solutions to relativistic wave equations have been obtained for both electromagnetic and particle beams that include Gouy phase. The sol…