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High Energy Physics - Lattice

arXiv:1301.5826 (hep-lat)
[Submitted on 24 Jan 2013]

Title:Thermodynamic properties of QCD in external magnetic fields

Authors:G. S. Bali, F. Bruckmann, M. Constantinou, M. Costa, G. Endrodi, Z. Fodor, S. D. Katz, S. Krieg, H. Panagopoulos, A. Schafer, K. K. Szabo
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Abstract:We consider the effect of strong external electromagnetic fields on thermodynamic observables in QCD, through lattice simulations with 1+1+1 flavors of staggered quarks at physical quark masses. Continuum extrapolated results are presented for the light quark condensates and for their tensor polarizations, as functions of the temperature and the magnetic field. We find the light condensates to undergo inverse magnetic catalysis in the transition region, in a manner that the transition temperature decreases with growing magnetic field. We also compare the results to other approaches and lattice simulations. Furthermore, we relate the tensor polarization to the spin part of the magnetic susceptibility of the QCD vacuum, and show that this contribution is diamagnetic.
Comments: 13 pages, 9 figures, talks presented by FB and GE at Xth Quark Confinement and the Hadron Spectrum, 8-12 October 2012, TUM Campus Garching, Munich, Germany
Subjects: High Energy Physics - Lattice (hep-lat); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
Cite as: arXiv:1301.5826 [hep-lat]
  (or arXiv:1301.5826v1 [hep-lat] for this version)
  https://doi.org/10.48550/arXiv.1301.5826

Submission history

From: Falk Bruckmann [view email]
[v1] Thu, 24 Jan 2013 16:10:12 UTC (253 KB)
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