Large and exact quantum degeneracy in a skyrmion magnet
We identify a large family of ground states of a topological C P N − 1 skyrmion magnet whose classical degeneracy persists to all orders in a semiclassical expansion. This goes along with an exceptional robustness of the concomitant ground-state configurations, which are not at all dressed by quantu...
| Main Authors: | , , |
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| Format: | Journal article |
| Published: |
American Physical Society
2016
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