24 citations · 108 across the 6 of their papers we have counts for
6 papers
Non-perturbative effective model for the Higgs sector of the Standard Model
Fabio Siringo, Luca Marotta
A non-perturbative effective model is derived for the Higgs sector of the standard model, described by a simple scalar theory. The renormalized couplings are determined by the deri…
Gaussian Effective Potential and Antiferromagnetism in the Hubbard Model
Luca Marotta, Fabio Siringo
The Gaussian Effective Potential (GEP) is shown to be a useful variational tool for the study of the magnetic properties of strongly correlated electronic systems. The GEP is deriv…
Gaussian effective potential for the standard model SU(2)xU(1) electroweak theory
Fabio Siringo, Luca Marotta
The Gaussian Effective Potential (GEP) is derived for the non-Abelian SU(2)xU(1) gauge theory of electroweak interactions. First the problem of gauge invariance is addressed in the…
Self-consistent variational approach to the minimal left-right symmetric model of electroweak interactions
Fabio Siringo, Luca Marotta
The problem of mass generation is addressed by a Gaussian variational method for the minimal left-right symmetric model of electroweak interactions. Without any scalar bidoublet, t…
A general interpolation scheme for thermal fluctuations in superconductors
L. Marotta, M. Camarda, G. G. N. Angilella +1
We present a general interpolation theory for the phenomenological effects of thermal fluctuations in superconductors. Fluctuations are described by a simple gauge invariant extens…
A variational method from the variance of energy
Luca Marotta, Fabio Siringo
A variational method is studied based on the minimum of energy variance. The method is tested on exactly soluble problems in quantum mechanics, and is shown to be a useful tool whe…