Higher-form symmetries and $d-wave$ superconductors from doped Mott insulators
Abstract
One path to high-temperature cuprate superconductors is doping a Mott insulator. In this paper, we study this system from the view point of higher-form symmetries. On the introduction of slave bosons, the model at a finite hole doping can be written in the form of gauge theories. After a duality transformation, they can be written as a generalized theory, in which the higher-form symmetries are more manifest. We identify the emergent continuous and discrete higher-form symmetries in both and superconducting phases, expected to be realized from a doped Mott insulator. The existence of a topological order is tested by examining if there is a spontaneously broken discrete one-form symmetry. We claim that a spontaneous breaking of discrete one-form symmetry may extend to a phase that has massless Dirac fermions in the limit of large number of flavors. We discuss the possibility of a topological phase transition inside the superconducting dome of high cuprates.
Keywords
Cite
@article{arxiv.1905.04617,
title = {Higher-form symmetries and $d-wave$ superconductors from doped Mott insulators},
author = {Ki-Seok Kim and Yuji Hirono},
journal= {arXiv preprint arXiv:1905.04617},
year = {2019}
}