English

Higher-form symmetries and $d-wave$ superconductors from doped Mott insulators

Strongly Correlated Electrons 2019-09-04 v1 Superconductivity High Energy Physics - Theory

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 tJt-J model at a finite hole doping can be written in the form of U(1)U(1) gauge theories. After a duality transformation, they can be written as a generalized BFBF theory, in which the higher-form symmetries are more manifest. We identify the emergent continuous and discrete higher-form symmetries in both swaves-wave and dwaved-wave 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 TcT_{c} 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}
}