Chiral spiral induced by a strong magnetic field

Abstract

We study the modification of the chiral phase structure of QCD due to an external magnetic field. We first demonstrate how the effect of magnetic field can systematically be incorporated into a generalized Ginzburg-Landau framework. We then analyze the phase structure in the vicinity of the chiral critical point. In the chiral limit, the effect is found to be so drastic that it totally washes the tricritical point out of the phase diagram, bringing the continent for the chiral spiral. This is the case no matter how small is the intensity of the magnetic field. On the other hand, the current quark mass protects the chiral critical point from a weak magnetic field. However the critical point will eventually be covered by the chiral spiral phase as the magnetic field grows.

6 pages, 6 eps figures. Presented at QCD@Work 2016: International Workshop on QCD - Theory and Experiment, June 27-30, Martina-Franca (Italy)

References in corpus (6)

• Inhomogeneous chiral condensates
• Inverse magnetic catalysis in dense holographic matter
• Novel Lifshitz point for chiral transition in the magnetic field
• Tricritical behavior of the massive chiral Gross-Neveu model
• Solitonic modulation and Lifshitz point in an external magnetic field within Nambu--Jona-Lasinio model
• Symmetry breaking effect on the inhomogeneous chiral transition in the magnetic field

Cited by in corpus (7)

• Recent progresses on QCD phases in a strong magnetic field -- views from Nambu--Jona-Lasinio model
• A novel Dual Chiral Density Wave in nuclear matter based on a parity doublet structure
• Chiral crystallization in an external magnetic background - Chiral spiral versus Real kink crystal -
• Dual chiral density waves in nuclear matter
• Magnetic-Field Induced Critical Endpoint
• Magnetic field effect on nuclear matter from skyrmion crystal model
• Chiral-Imbalance Density Wave in Baryonic Matters