Two-dimensional chiral crystals in the NJL model

Details Two-dimensional chiral crystals in the NJL model Two-dimensional chiral crystals in the NJL model

2012-03-23

arxiv.org/abs/1203.5343v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 5 figures

Scientific paper

We investigate the phase structure of the Nambu--Jona-Lasinio model at zero temperature, allowing for a two-dimensional spatial dependence of the chiral condensate. Applying the mean-field approximation, we consider various periodic structures with rectangular and hexagonal geometries, and minimize the corresponding free energy. We find that these two-dimensional chiral crystals are favored over homogeneous phases in a certain window in the region where the phase transition would take place when the analysis was restricted to homogeneous condensates. It turns out, however, that in this regime they are disfavored against a phase with a one-dimensional modulation of the chiral condensate. On the other hand, we find that square and hexagonal lattices eventually get favored at higher chemical potentials. Although stretching the limits of the model to some extent, this would support predictions from quarkyonic-matter studies.

Affiliated with

Also associated with

No associations

Rating

Two-dimensional chiral crystals in the NJL model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Two-dimensional chiral crystals in the NJL model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-dimensional chiral crystals in the NJL model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-38692