Chiral Soliton Lattice and Charged Pion Condensation in Strong Magnetic Fields

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.

v2: 19 pages, 6 figures; substantially extended version of the paper, published in JHEP

References in corpus (1)

• Quantum Anomalies in Dense Matter

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