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Chiral Soliton Lattice and Charged Pion Condensation in Strong Magnetic Fields (1609.05213v2)
Published 16 Sep 2016 in hep-ph, cond-mat.str-el, and hep-th
Abstract: The Chiral Soliton Lattice (CSL) is a state with a periodic array of topological solitons that spontaneously breaks parity and translational symmetries. Such a state is known to appear in chiral magnets. We show that CSL also appears as a ground state of quantum chromodynamics at nonzero chemical potential in a magnetic field. By analyzing the fluctuations of the CSL, we furthermore demonstrate that in strong but achievable magnetic fields, charged pions undergo Bose-Einstein condensation. Our results, based on a systematic low-energy effective theory, are model-independent and fully analytic.
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