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Instability of rotating chiral solitons
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https://doi.org/10.1103/physrevd.30.1837Abstract
We show that spherically symmetric chiral SU(2)×SU(2) solitons are unstable under spin-isospin rotations. Namely, the effective potential including the effects of quantizing the collective coordinate corresponding to such a rotation has no minimum in the class of functions used to describe such solitons.
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