Topological density wave states of non-zero angular momentum

TL;DR

This paper explores exotic topological density wave states with non-zero angular momentum, proposing their relevance to the pseudogap phase in high-temperature superconductors and other correlated electron systems.

Contribution

It introduces a new class of topological density wave states with non-zero angular momentum, linking topological properties to pseudogap phenomena.

Findings

Topological density wave states exhibit unique symmetry-breaking features.

These states may explain pseudogap behavior in high-temperature superconductors.

Potential relevance to other correlated electron systems like heavy fermions.

Abstract

The pseudogap state of high temperature superconductors is a profound mystery. It has tantalizing evidence of a number of broken symmetry states, not necessarily conventional charge and spin density waves. Here we explore a class of more exotic density wave states characterized by topological properties observed in recently discovered topological insulators. We suggest that these rich topological density wave states deserve closer attention in not only high temperature superconductors but in other correlated electron states, as in heavy fermions.