%0 Journal Article
%T Pion String evolving in a thermal bath
%A Fan Lu
%A Qichang Chen
%A Hong Mao
%J Physics
%D 2015
%I arXiv
%R 10.1103/PhysRevD.92.085036
%X By using the symmetry improved CJT effective formalism, we study a pion string of the $O(4)$ linear sigma model at finite temperature in chiral limit. In terms of the Kibble-Zurek mechanism we reconsider the production and evolution of the pion string in a thermal bath. Finally, we estimate the pion string density and its possible signal during the chiral phase transition.
%U http://arxiv.org/abs/1507.04174v2