Two-color QCD with staggered fermions at finite temperature under the influence of a magnetic field
arXiv:1203.3360 · doi:10.1103/PhysRevD.85.114504
Abstract
In this paper we investigate the influence of a constant external magnetic field on the finite-temperature phase structure and the chiral properties of a simplified lattice model for QCD. We assume an SU(2) gauge symmetry and employ dynamical staggered fermions of identical mass without rooting, corresponding to Nf=4 flavors of identical electric charge. For fixed mass (given in lattice units) the critical temperature is seen to rise with the magnetic field strength. For three fixed beta-values, selected such that we stay (i) within the chirally broken phase, (ii) within the transition region or (iii) within the chirally restored phase, we study the approach to the chiral limit for various values of the magnetic field. Within the chirally broken (confinement) phase the chiral condensate is found to increase monotonically with a growing magnetic field strength. In the chiral limit the increase starts linear in agreement with a chiral model studied by Shushpanov and Smilga. Within the chirally restored (deconfinement) phase the chiral condensate tends to zero in the chiral limit, irrespective of the strength of the magnetic field.
15 pages, 12 figures; version accepted by Physical Review D
References in corpus (7)
- QCD Phase Transition in a Strong Magnetic Background
- Chiral Properties of Strong Interactions in a Magnetic Background
- Quark-hadron phase transition in a magnetic field
- External Fields and Chiral Symmetry Breaking in the Sakai-Sugimoto Model
- Charge Fluctuations from the Chiral Magnetic Effect in Nuclear Collisions
- QCD dynamics in a constant chromomagnetic field
- Quark mass dependence of the vacuum electric conductivity induced by the magnetic field in SU(2) lattice gluodynamics
Cited by in corpus (25)
- The Importance of Asymptotic Freedom for the Pseudocritical Temperature in Magnetized Quark Matter
- Spontaneous generation of local CP violation and inverse magnetic catalysis
- The melting of charmonium in a magnetic field from an effective AdS/QCD model
- Magnetic field effects on the static quark potential at zero and finite temperature
- Inverse Magnetic Catalysis in the Soft-Wall Model of AdS/QCD
- Phase diagram of QCD in a magnetic background
- Heavy meson spectroscopy under strong magnetic field
- Inverse Magnetic Catalysis in the three-flavor NJL model with axial-vector interaction
- Susceptibility of the QCD vacuum to CP-odd electromagnetic background fields
- mesons in strong abelian magnetic field in SU(3) lattice gauge theory
- Thermodynamics of strong-interaction matter from Lattice QCD
- Confining and chiral properties of QCD in extremely strong magnetic fields
- Magnetic catalysis of a charged Bose-Einstein condensate
- Impacts of (inverse) magnetic catalysis on screening masses of neutral pions and sigma mesons in hot and magnetized quark matter
- Analytic Study of Magnetic Catalysis in Holographic QCD
- Deformed QCD phase structure and entropy oscillation in the presence of a magnetic background
- Inverse magnetic catalysis and energy loss in holographic QCD model
- Hot perturbative QCD in a very strong magnetic background
- Quantum criticality of magnetic catalysis in two-dimensional correlated Dirac fermions
- Thermodynamic properties of QCD in external magnetic fields
- QCD in magnetic fields: from Hofstadter's butterfly to the phase diagram
- Low-energy relation for the trace of the energy-momentum tensor in QCD and the gluon condensate in a magnetic field
- Chiral dynamics with confinement versus the standard chiral theory
- Speed of sound peak in two-color dense QCD: confronting effective models with lattice data
- Background field and time dependence effects in holographic models