Charged pion condensation under parallel electromagnetic fields
High Energy Physics - Phenomenology
2018-05-03 v1 Nuclear Theory
Abstract
The formation of charged pion condensate under parallel electromagnetic fields is studied within the two-flavor Nambu--Jona-Lasinio model. The technique of Schwinger proper time method is extended to explore the quantity locating in the off-diagonal flavor space, i.e., charged pion. We obtain the associated effective potential as a function of the strength of the electromagnetic fields and find out that it contains a sextic term which possibly induce weakly first order phase transition. Dependence of pion condensation on model parameters is investigated.
Cite
@article{arxiv.1805.00614,
title = {Charged pion condensation under parallel electromagnetic fields},
author = {Jingyi Chao and Mei Huang and Andrey Radzhabov},
journal= {arXiv preprint arXiv:1805.00614},
year = {2018}
}
Comments
8 pages, 5 figures