76 citations · 164 across the 9 of their papers we have counts for
7 papers · 1 filter
Applicability of the Linear delta Expansion for the lambda phi^4 Field Theory at Finite Temperature in the Symmetric and Broken Phases
R. L. S. Farias, G. Krein, R. O. Ramos
The thermodynamics of a scalar field with a quartic interaction is studied within the linear delta expansion (LDE) method. Using the imaginary-time formalism the free energy is eva…
Extension of the Nambu--Jona-Lasinio model at high densities and temperatures by using an implicit regularization scheme
R. L. S. Farias, G. Dallabona, G. Krein +1
Traditional cutoff regularization schemes of the Nambu--Jona-Lasinio model limit the applicability of the model to energy-momentum scales much below the value of the regularizing c…
Incorporating Memory Effects in Phase Separation Processes
T. Koide, G. Krein, Rudnei O. Ramos
We consider the modification of the Cahn-Hilliard equation when a time delay process through a memory function is taken into account. We then study the process of spinodal decompos…
Cutoff-independent regularization of four-fermion interactions for color superconductivity
R. L. S. Farias, G. Dallabona, G. Krein +1
We implement a cutoff-independent regularization of four-fermion interactions to calculate the color-superconducting gap parameter in quark matter. The traditional cutoff regulariz…
Can dissipation prevent explosive decomposition in high-energy heavy ion collisions?
Eduardo S. Fraga, G. Krein
We discuss the role of dissipation in the explosive spinodal decomposition scenario of hadron production during the chiral transition after a high-energy heavy ion collision. We us…
Hadronic current correlation functions at finite temperature in the NJL model
R. L. S. Farias, G. Krein, O. A. Battistel
Recently there have been suggestions that for a proper description of hadronic matter and hadronic correlation functions within the NJL model at finite density/temperature the para…