EPJ Web Conf.
Volume 276, 2023The 20th International Conference on Strangeness in Quark Matter (SQM 2022)
|Number of page(s)||5|
|Section||Bulk Matter Phenomena, QCD Phase Diagram, and Critical Point|
|Published online||01 March 2023|
Phase diagram of the QCD Kondo effect and inactivation of the magnetic catalysis
Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou, 310027, China
2 Research Center for Nuclear Physics (RCNP), Osaka University, Osaka 567-0047, Japan
3 Strangeness Nuclear Physics Laboratory, RIKEN Nishina Center, Wako 351-0198, Japan
4 Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), Tokai 319-1195, Japan
5 Research and Education Center for Natural Sciences, Keio University, Hiyoshi 4-1-1, Yokohama, Kanagawa 223-8521, Japan
Published online: 1 March 2023
We investigate the QCD phase diagram in strong magnetic fields with heavy-quark impurities and determine the ground state within the mean-field analysis. The ground state is characterized by magnitudes of the pairing not only between the light quark and antiquark, i.e., chiral condensate, but also between the light quark and heavy-quark impurity, dubbed the Kondo condensate. We propose signatures of the interplay and/or competition between those two pairing phenomena reflected in the magnitude of the chiral condensate that is saturated with respect to the magnetic-field strength and anomalously increases with increasing temperature.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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