18 citations · 18 across the 2 of their papers we have counts for
3 papers
quant-ph2026
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…
quant-ph2021★ 18 cited
Entanglement and scattering in quantum electrodynamics: S-matrix information from an entangled spectator particle
Juan D. Fonseca, B. Hiller, J. B. Araujo +2
We consider a general quantum field relativistic scattering involving two half spin fermions, and , which are initially entangled with another fermion that does not part…
cond-mat.mtrl-sci2011
Continuous local model for two-dimensional spin ice
J. E. da Fonseca, C. W. Morais, A. L. Mota +1
We propose a classical model Hamiltonian with a ground state presenting a spin ice structure. We analyze the introduction of metastable excitations on this ground state, showing th…