EPJ Web of Conferences 172, 03005 (2018)
https://doi.org/10.1051/epjconf/201817203005

Dynamics of inhomogeneous chiral condensates

¹ IFLP, CONICET Departamento e Física, Universidad Nacional de La Plata C.C. 67, 1900 La Plata, Argentina
² CONICET, Rivadavia 1917, 1033 Buenos Aires, Argentina
³ ICTP South American Institute for Fundamental Research Rua Dr. Bento Teobaldo Ferraz, 271 - Bloco II, 01140-070 São Paulo, SP, Brazil
⁴ Instituto de Física Teórica, Universidade Estadual Paulista Rua Dr. Bento Teobaldo Ferraz, 271 - Bloco II, 01140-070 São Paulo, SP, Brazil
⁵ Centre de Physique Théorique, Ecole Polytechnique, CNRS, Université Paris-Saclay F-91128 Palaiseau, France
⁶ Instituto Federal do Norte de Minas Gerais, Campus Almenara Rodovia BR 367 Km 07 S/N, 39900-000 Almenara, MG, Brazil

^* e-mail: juanpablocarlomagno@gmail.com
^** e-mail: gkrein@ift.unesp.br
^*** e-mail: daniel.kroff-fogaca@polytechnique.edu
^**** e-mail: thiagop@ift.unesp.br

Published online: 26 January 2018

Abstract

We study the dynamics of the formation of inhomogeneous chirally broken phases in the final stages of a heavy-ion collision, with particular interest on the time scales involved in the formation process. The study is conducted within the framework of a Ginzburg-Landau time evolution, driven by a free energy functional motivated by the Nambu–Jona-Lasinio model. Expansion of the medium is modeled by one-dimensional Bjorken flow and its effect on the formation of inhomogeneous condensates is investigated. We also use a free energy functional from a nonlocal Nambu–Jona-Lasinio model which predicts metastable phases that lead to long-lived inhomogeneous condensates before reaching an equilibrium phase with homogeneous condensates.