The finite temperature QCD transition in external magnetic fields

Abstract

The effect of an external magnetic field on the finite temperature transition of QCD is studied. We measure thermodynamic observables including the quark condensates and susceptibilities and the strange quark number susceptibility. We generate configurations at various values of the quantized magnetic flux with N_f=2+1 flavors of stout smeared staggered quarks at physical quark masses. We perform the renormalization of our observables and approach the continuum limit with N_t=6,8 and 10 lattices. We also check finite volume effects using various lattice volumes. Our main result is that the transition temperature significantly decreases with growing magnetic field, and that the transition remains an analytic crossover up to our largest external field eB ~ 1 GeV^2.

7 pages, 3 figures, talk presented at the XXIX International Symposium on Lattice Field Theory (Lattice 2011), July 10-16, 2011, Squaw Valley, Lake Tahoe, California, USA

Cited by in corpus (6)

• Inverse magnetic catalysis and the Polyakov loop
• Magnetic susceptibility of QCD at zero and at finite temperature from the lattice
• Inverse Anisotropic Catalysis in Holographic QCD
• Low-energy theorems of QCD and bulk viscosity at finite temperature and baryon density in a magnetic field
• QCD at nonzero temperature and density
• QCD chiral condensate and pseudoscalar-meson properties in the nuclear medium at finite temperature