18 citations · 88 across the 21 of their papers we have counts for
5 papers · 1 filter
Gaussian-Perturbative Calculations with a Homogeneous External Source
Jorge L. deLyra
We derive the equation of the critical curve and calculate the renormalized masses of the -symmetric model in the presence of a homogeneous external source. We do t…
Fluctuating Commutative Geometry
Luiz C. de Albuquerque, Jorge L. deLyra, Paulo Teotonio-Sobrinho
We use the framework of noncommutative geometry to define a discrete model for fluctuating geometry. Instead of considering ordinary geometry and its metric fluctuations, we consid…
Fluctuating Dimension in a Discrete Model for Quantum Gravity Based on the Spectral Principle
Luiz C. de Albuquerque, Jorge L. deLyra, Paulo Teotonio-Sobrinho
The spectral principle of Connes and Chamseddine is used as a starting point to define a discrete model for Euclidean quantum gravity. Instead of summing over ordinary geometries,…
Electron--Electron Bound States in QED
H. O. Girotti, M. Gomes, J. L. deLyra +3
This paper is dedicated to the study of the existence and the properties of electron-electron bound states in QED. A detailed analysis of the infrared structure of the perturba…
Attractive Forces Between Electrons in QED
H. O. Girotti, M. Gomes, J. L. deLyra +3
Vacuum polarization effects are non-perturbatively incorporated into the photon propagator to eliminate the severe infrared problems characteristic of QED. The theory is thus r…