Magnetic-Field Induced Critical Endpoint

Abstract

The phase diagram of strong interaction matter is analyzed utilizing the Nambu--Jona-Lasinio model. Special emphasis is placed on its dependence on an external magnetic field and isospin chemical potential. Using flavor mixing induced by instanton effects the influence of isospin breaking due to the magnetic field and the isospin chemical potential is compared. It is found that at low temperatures and large quark chemical potential the magnetic field, depending on its strength, induces a new critical endpoint or a triple point.

arXiv comment8 pages, 5 figures, references added in second version

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Cited by in corpus (6)

• QCD phase diagram in a magnetized medium from the chiral symmetry perspective: The linear sigma model with quarks and the Nambu--Jona-Lasinio model effective descriptions
• Electromagnetic fields from the extended Kharzeev-McLerran-Warringa model in relativistic heavy-ion collisions
• The presence of a critical end point in the QCD phase diagram from the net-baryon number fluctuations
• Chiral crystallization in an external magnetic background - Chiral spiral versus Real kink crystal -
• Net baryon-number fluctuations in magnetized quark matter
• The compressibility of quark matter under strong magnetic field in the NJL model