›On electromagnetic superconductivity of vacuum in very strong magnetic field
In a background of a very strong magnetic field a QCDxQED vacuum may turn into a new phase characterised by anisotropic electromagnetic superconductivity. The transition occurs due to an interplay between electromagnetic and strong interactions. The Meissner effect is absent in this phase because the superconductivity is realized only along the axis of the magnetic field. The phase transition should take place at a critical magnetic field of the hadronic strength, eB_c ~ 0.6 GeV^2. Such strong magnetic field may be reached at the LHC in ultraperipheral heavy-ion collisions. In this talk we discuss structure of the ground state and transport properties of a strong-field limit of the electromagnetically superconducting QCD phase.
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