Abstract
In this paper, we study the possibility of an inhomogeneous quark condensate in the ()-dimensional Nambu-Jona-Lasinio model in the large- limit at finite temperature and quark chemical potential using dimensional regularization. The phase diagram in the plane is mapped out. At zero temperature, an inhomogeneous phase with a chiral-density wave exists for , where is a critical chemical potential. Performing a Ginzburg-Landau analysis, we show that in the chiral limit, the tricritical point and the Lifschitz point coincide. We also consider the competition between a chiral-density wave and a constant pion condensate at finite isospin chemical potential . The phase diagram in the plane is mapped out and shows a rich phase structure.
4 More- Received 2 February 2017
DOI:https://doi.org/10.1103/PhysRevD.95.054020
© 2017 American Physical Society