gauging and self-dualities of the model and its cousins
Phys. Rev. B 112, 035105 – Published 1 July, 2025
DOI: https://doi.org/10.1103/c16r-fdfb
Abstract
In this work, we investigate the one-dimensional lattice model and its cousins through the lens of momentum and winding symmetries. We distinguish two closely related symmetries based on their relation to the symmetries, and establish a web of -gauging relations among these models, rooted in two fundamental seeds: the models. These two seeds, each self-dual under gauging of the respective symmetries, possess manifestly symmetric conserved charges, making transparent the connection between the noninvertible symmetries and the Kramers-Wannier duality. By leveraging the self-dualities of these two seed models, we derive the self-dualities of their cousins, including the model and the Levin-Gu model, through appropriate gauging procedures. Moreover, under these gauging schemes, the lattice T-duality matrices take the form of the identity matrix. These lattice models flow to the compact boson conformal field theory, with a twist that depends on the lattice size modulo four. Finally, we unify the mapping structures of local conserved charges across these models, providing a comprehensive framework for understanding their symmetries and dualities.