46 citations · 292 across the 24 of their papers we have counts for
25 papers
Spontaneous Symmetry Breaking and the Cosmological Constant
J. Gamboa, J. Lopez-Sarrion, F. Mendez +1
An approach that allows studying the relationship between the neutralization of the cosmological constant and instantons for cosmology coupled to antisymmetric fields is proposed.…
Tree-level unitarity, causality and higher-order Lorentz and CPT violation
Justo Lopez-Sarrion, Carlos M. Reyes, Cesar Riquelme
Higher-order effects of CPT and Lorentz violation within the SME effective framework including Myers-Pospelov dimension-five operator terms are studied. The model is canonically qu…
Kinetic and Magnetic Mixing with Antisymmetric Gauge Fields
J. Gamboa, J. Lopez-Sarrion, F. Mendez
A general procedure to describe the coupling between antisymmetric gauge fields is proposed. For vector gauge theories the inclusion of magnetic mixing in…
Ghost condensation and Ostrogradskian instability on low derivative backgrounds
Justo Lopez-Sarrion, Mauricio Valencia-Villegas
We show a new class of interaction terms with higher derivatives that can be added to every low derivative real scalar, such that the theory is degenerate, and the equation of moti…
Non-Perturbative Aspects of Spontaneous Symmetry Breaking
Jorge Gamboa, Justo Lopez-Sarrion
Spontaneous symmetry breaking is studied in the ultralocal limit of a scalar quantum field theory, that is when (or infrared limit). In this limit we show that a $ φ^4…
Cosmic Neutrino Background as a Ferromagnet
Paola Arias, Jorge Gamboa, Justo Lopez-Sarrion
If cosmic background neutrinos interact very weakly with each other, through spin-spin interactions, then they may have experienced a phase transition, leading to a ferromagnetic o…