QCD quark condensate in external magnetic fields

By Gunnar S. Bali, F. Bruckmann, Gergely Endrodi, Zoltán Fodor, Sándor D. Katz, Andreas Schäfer. 2012

383 citations recorded by the source corpus.

We present a comprehensive analysis of the light condensates in QCD with $1+1+1$ sea quark flavors (with mass-degenerate light quarks of different electric charges) at zero and nonzero temperatures of up to 190 MeV and external magnetic fields $Bl1\text{ }\text{ }{\mathrm{GeV}}^{2}/e$. We employ stout smeared staggered fermions with physical quark masses and extrapolate the results to the continuum limit. At low temperatures we confirm the magnetic catalysis scenario predicted by many model calculations while around the crossover the condensate develops a complex dependence on the external magnetic field, resulting in a decrease of the transition temperature.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/e85712d1c2ac77a7c2f65a8e1b13d42a57b9b73c

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In Nuclear and High Energy Physics

Citations in the corpus

QCD at finite temperature and chemical potential from Dyson–Schwinger equations (2018, background): “Perhaps surprisingly, results from lattice QCD also demonstrate that the opposite effect happens for large enough temperatures: the dynamical mass generation is reduced and consequently the transition temperatures for the crossover to the chirally restored phase is decreased [76–80].”
Magnetic Catalysis: A Review (2012, methodology): “Because of a poorly understood interplay between the dynamics responsible for the quark (de-)confinement on the one han d and the magnetic catalysis on the other, there are a lot of uncertainties abou t the precise role of the magnetic field in this case [121, 144, 2, 25, 146, 67, 68, 69, 77 , 78, 3”
Polyakov loop modeling for hot QCD (2017, background): “The lattice-QCD simulation under strong magnetic fields [120, 121], however, have revealed that two crossovers occur like not the right but the left panel of Fig.”