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

**Authors:** Ki-Seok Kim, Yuji Hirono

arXiv: 1905.04617 · 2019-09-04

## TL;DR

This paper explores higher-form symmetries in doped Mott insulators, revealing their role in different superconducting phases and potential topological phase transitions relevant to high-temperature cuprates.

## Contribution

It introduces a duality-based framework using generalized BF theory to identify higher-form symmetries in doped Mott insulators and their connection to superconducting phases.

## Key findings

- Identification of emergent higher-form symmetries in s-wave and d-wave phases
- Proposal of spontaneous breaking of discrete one-form symmetry
- Discussion of possible topological phase transitions within the superconducting dome

## 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 $t-J$ model at a finite hole doping can be written in the form of $U(1)$ gauge theories. After a duality transformation, they can be written as a generalized $BF$ theory, in which the higher-form symmetries are more manifest. We identify the emergent continuous and discrete higher-form symmetries in both $s-wave$ and $d-wave$ 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 $T_{c}$ cuprates.

## Full text

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## References

25 references — full list in the complete paper: https://tomesphere.com/paper/1905.04617/full.md

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Source: https://tomesphere.com/paper/1905.04617