Magnetic impurities at quantum critical points: Large- N expansion and connections to symmetry-protected topological states
In symmetry protected topological (SPT) phases, the combination of symmetries and a bulk gap stabilizes protected modes at surfaces or at topological defects. Understanding the fate of these modes at a quantum critical point, when the protecting symmetries are on the verge of being broken, is an out...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS),
2022-04-28T18:33:45Z.
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| Subjects: | |
| Online Access: | Get fulltext |