Non-invertible translation from Lieb-Schultz-Mattis anomaly

• URL: http://arxiv.org/abs/2601.21625v1
• Date: Thu, 29 Jan 2026 12:26:56 GMT
• Title: Non-invertible translation from Lieb-Schultz-Mattis anomaly
• Authors: Tsubasa Oishi, Takuma Saito, Hiromi Ebisu,
• Abstract summary: Lieb-Schultz-Mattis anomaly is a mixed 't Hooft anomaly between internal and translational symmetries.<n>We investigate lattice translation operators in systems with an LSM anomaly.<n>We show that, after gauging the full internal symmetry, translation becomes non-invertible and fuses into defects of the internal symmetry.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Symmetry provides powerful non-perturbative constraints in quantum many-body systems. A prominent example is the Lieb-Schultz-Mattis (LSM) anomaly -- a mixed 't Hooft anomaly between internal and translational symmetries that forbids a trivial symmetric gapped phase. In this work, we investigate lattice translation operators in systems with an LSM anomaly. We construct explicit lattice models in two and three spatial dimensions and show that, after gauging the full internal symmetry, translation becomes non-invertible and fuses into defects of the internal symmetry. The result is supported by the anomaly-inflow in view of topological field theory. Our work extends earlier one-dimensional observations to a unified higher-dimensional framework and clarifies their origin in mixed anomalies and higher-group structures, highlighting a coherent interplay between internal and crystalline symmetries.

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