Vafa-Witten theorem, vector meson condensates and magnetic-field-induced
electromagnetic superconductivity of vacuum [PDF]
M. N. ChernodubWe show that the electromagnetic superconductivity of vacuum in strong magnetic field background is consistent with the Vafa-Witten theorem because the charged vector meson condensates lock relevant internal global symmetries of QCD with the electromagnetic gauge group.View original: http://arxiv.org/abs/1209.3587
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