Fractional domain wall statistics in spin chains with anomalous symmetries
We study the statistics of domain wall excitations in quantum spin chains. We focus on systems with finite symmetry groups represented by matrix product unitaries (MPUs), i.e. finite depth quantum circuits. Such symmetries can be anomalous, in which case gapped phases which they support must break t...
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| Format: | Article |
| Language: | English |
| Published: |
SciPost
2025-02-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.18.2.043 |
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