Analysis of ρ condensation in a Nambu-Jona-Lasinio model
Via Erasmo Gattamelata, 3 00176 Rome ( Italy )
a e-mail: email@example.com
Published online: 24 November 2014
A non-local Nambu-Jona-Lasinio model can be derived from QCD in the lowenergy limit. In this way, it is possible to fix all the free parameters of the model with physical ones. We used this approach to derive a local limit to the Nambu-Jona-Lasinio model, with the parameters those obtained from QCD, in order to fix the physical parameters of ρ condensation and obtain the critical magnetic field. ρ condensation is a consequence of the highly non-trivial behavior of the QCD vacuum in presence of a very strong magnetic field giving rising to superconductive behavior in quark matter. We extend previous computations by including finite temperature terms.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.