Chiral Transition Within Effective Quark Models Under Magnetic Fields

Ferrari, Gabriel N.; Garcia, Andre F.; Pinto, Marcus B.

doi:10.48550/arxiv.1207.3714

Cited by 6 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4) does any new, unexpected phase of strongly interacting matter emerge for strong enough background fields? Many model computations exist, which try to answer those questions [77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96], in the following we will discuss results based on lattice simulations. The focus will be on aspects regarding deconfinement and chiral symmetry restoration, leaving aside other issues, like the possible emergence of a superconductive phase for strong enough magnetic fields [97,60,98,99].…”

Section: Qcd Phase Diagram In External Fieldsmentioning

confidence: 99%

Lattice QCD Simulations in External Background Fields

D’Elia

2013

Lecture Notes in Physics

View full text Add to dashboard Cite

We discuss recent results and future prospects regarding the investigation, by lattice simulations, of the non-perturbative properties of QCD and of its phase diagram in presence of magnetic or chromomagnetic background fields. After a brief introduction to the formulation of lattice QCD in presence of external fields, we focus on studies regarding the effects of external fields on chiral symmetry breaking, on its restoration at finite temperature and on deconfinement. We conclude with a few comments regarding the effects of electromagnetic background fields on gluodynamics.Comment: 31 pages, 10 figures, minor changes and references added. To appear in Lect. Notes Phys. "Strongly interacting matter in magnetic fields" (Springer), edited by D. Kharzeev, K. Landsteiner, A. Schmitt, H.-U. Ye

show abstract

Section: Qcd Phase Diagram In External Fieldsmentioning

confidence: 99%

Lattice QCD Simulations in External Background Fields

D’Elia

2013

Lecture Notes in Physics

View full text Add to dashboard Cite

show abstract

“…Refs. [10][11][12][13][14][15][16][17]), as in the case of vanishing magnetic field the corresponding behavior of the strongly interacting matter has not been firmly established. For example, only very recently was it fully realized that there exists an "inverse catalysis effect" at certain values of the magnetic field [18].…”

Section: Introductionmentioning

confidence: 99%

Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram

Allen

Scoccola

2013

Phys. Rev. D

View full text Add to dashboard Cite

The phase structure of magnetized cold quark matter is analyzed in the framework of the two-flavor Nambu-Jona-Lasinio models paying special attention to its dependence on the model parameters as different values within the phenomenological allowed range are considered. We first discuss the simpler chiral limit case, and then the more realistic situation of finite current masses. We show that in spite of the difference in the nature of some transitions, both cases are alike and exhibit a rather rich phase structure for a significant range of acceptable parameters. A simplification of the phase structure is obtained as parameters leading to larger values of the dressed quark mass in the vacuum are considered. Finally, we consider the so-called "inverse catalysis effect" showing that in some phases it implies an actual decrease of the order parameter as the magnetic field increases.

show abstract

“…Such magnetic field can also exist in magnetars [30] and in the early universe [31][32][33] despite the origin of such strong field is not clear yet. Above phenomena lead us to think deeply about the influence of the magnetic field on the QCD phase diagram [34]. Recently, much work has been done about the influence of the magnetic field on the properties of quark matter [35], chiral transition [36] and color superconductivity [37][38][39].…”

Section: Introductionmentioning

confidence: 99%

The influence of magnetic field on the pion superfluidity and phase structure in the NJL model

Kang,

Jin,

Xiong

et al. 2013

Preprint

View full text Add to dashboard Cite

The influence of the magnetic field on the pion superfluidity and the phase structure is analyzed in the framework of the two-flavor Nambu-Jona-Lasinio(NJL) model. To do this, we first derive the thermodynamic potential from the Lagrangian density of the NJL model in the mean field approximation. Using this thermodynamic potential, we get the gap equation of the chiral condensate and the pion condensate. The effect of external magnetic field on the pion condensate is not simple promotion or suppression, which we will discuss in detail in the paper. It is shown that the tricritical point on the pion superfluidity phase transition line moves to the space with smaller isospin chemical potential and higher temperature when the external magnetic field becomes stronger. The influence of external magnetic field on the chiral condensate is also studied.

show abstract

Chiral Transition Within Effective Quark Models Under Magnetic Fields

Cited by 6 publications

References 0 publications

Lattice QCD Simulations in External Background Fields

Lattice QCD Simulations in External Background Fields

Quark matter under strong magnetic fields in SU(2) NJL-type models: Parameter dependence of the cold dense matter phase diagram

The influence of magnetic field on the pion superfluidity and phase structure in the NJL model

Contact Info

Product

Resources

About