24 citations · 153 across the 23 of their papers we have counts for
10 papers · 1 filter
Functional bosonization with time dependent perturbations
Carlos M. Naón, Mariano J. Salvay, Marta L. Trobo
We extend a path-integral approach to bosonization previously developed in the framework of equilibrium Quantum Field Theories, to the case in which time-dependent interactions are…
A non covariant fermionic determinant and its connection to Luttinger systems
Aníbal Iucci, Carlos Naón
We consider a fermionic determinant associated to a non covariant Quantum Field Theory used to describe a non relativistic system in (1+1) dimensions. By exploiting the freedom tha…
RG study of a non local sine-Gordon model
Carlos M. Naón, Mariano J. Salvay
We study a non local version of the sine-Gordon model connected to a many-body system with backward and umklapp scattering processes. Using renormalization group methods we derive…
Improved harmonic approximation and the 2D Ising model at and
Aníbal Iucci, Carlos M. Naón
We propose a new method to determine the unknown parameter associated to a self-consistent harmonic approximation. We check the validity of our technique in the context of the sine…
Conformal Gaussian Approximation
Aníbal Iucci, Carlos Naón
We present an alternative way to determine the unknown parameter associated to a gaussian approximation in a generic two-dimensional model. Instead of the standard variational appr…
Classical electromagnetic field theory in the presence of magnetic sources
Wen-Jun Chen, Kang Li, Carlos Naón
Using two new well defined 4-dimensional potential vectors, we formulate the classical Maxwell's field theory in a form which has manifest Lorentz covariance and SO(2) duality symm…
On a CFT prediction in the sine-Gordon model
Carlos Naón, Mariano Salvay
A quantitative prediction of Conformal Field Theory (CFT), which relates the second moment of the energy-density correlator away from criticality to the value of the central charge…
Non local Thirring model with spin flipping interactions
Aníbal Iucci, Kang Li, Carlos M. Naón
We extend a non local and non covariant version of the Thirring model in order to describe a many-body system with spin-flipping interactions By introducing a model with two fermio…
An alternative formulation of classical electromagnetic duality
Kang Li, Carlos M. Naón
By introducing a doublet of electromagnetic four dimensional vector potentials, we set up a manifestly Lorentz covariant and SO(2) duality invariant classical field theory of elect…
Path-integral fermion-boson decoupling at finite temperature
M. V. Manías, C. M. Naón, M. L. Trobo
We show how to extend the standard functional approach to bosonisation, based on a decoupling change of path-integral variables, to the case in which a finite temperature is consid…