Mermin-Wagner theorems for quantum systems with multipole symmetries
Mathematical Physics
2026-02-02 v1 math.MP
Abstract
We prove Mermin-Wagner-type theorems for quantum lattice systems in the presence of multipole symmetries. These theorems show that the presence of higher-order symmetries protects against the breaking of lower-order ones. In particular, we prove that the critical dimension in which the charge symmetry can be broken increases if the system admits higher multipole symmetries, e.g. on the regular lattice in the presence of dipole symmetry.
Cite
@article{arxiv.2601.23078,
title = {Mermin-Wagner theorems for quantum systems with multipole symmetries},
author = {Timo Feistl and Severin Schraven and Simone Warzel},
journal= {arXiv preprint arXiv:2601.23078},
year = {2026}
}
Comments
19 pages. Comments are welcome!