Higher-form Symmetries under Weak Measurement
Strongly Correlated Electrons
2024-05-21 v2 High Energy Physics - Theory
Quantum Physics
Abstract
We aim to address the following question: if we start with a quantum state with a spontaneously broken higher-form symmetry, what is the fate of the system under weak local quantum measurements? We demonstrate that under certain conditions, a phase transition can be driven by weak measurements, which suppresses the spontaneous breaking of the 1-form symmetry and weakens the 1-form symmetry charge fluctuation. We analyze the nature of the transitions employing the tool of duality, and we demonstrate that some of the transitions driven by weak measurement enjoy a line of fixed points with self-duality.
Cite
@article{arxiv.2304.14433,
title = {Higher-form Symmetries under Weak Measurement},
author = {Kaixiang Su and Nayan Myerson-Jain and Chong Wang and Chao-Ming Jian and Cenke Xu},
journal= {arXiv preprint arXiv:2304.14433},
year = {2024}
}
Comments
14 pages, 2 figure