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Screening of very intense magnetic fields by chiral symmetry breaking
Abstract
In very intense magnetic fields, B>1.5×1014T, the breaking of the strong interaction SU (2) × SU (2) symmetry arranges itself so that instead of the neutral σ field acquiring a vacuum expectation value it is the charged π field that does and the magnetic field is screened. Details are presented for a magnetic field generated by a current in a wire; we show that the magnetic field is screened out to a distance ρ{variant}0∼I f{hook}πmπ from the wire. © 1992.
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