Quantum oscillations in a biaxial pair density wave state

TL;DR

This paper proposes that a biaxial pair density wave state explains quantum oscillations in cuprates, supporting the idea that the pseudogap phase involves such a state, based on analysis of STM data and vortex halo overlap.

Contribution

It introduces a biaxial pair density wave model that uniquely describes quantum oscillation data in cuprates, advancing understanding of the pseudogap phase.

Findings

Biaxial pair density wave state fits quantum oscillation data.

Vortex halo overlap occurs at magnetic fields where oscillations are observed.

Supports pseudogap phase as a pair density wave state.

Abstract

There has been growing speculation that a pair density wave state is a key component of the phenomenology of the pseudogap phase in the cuprates. Recently, direct evidence for such a state has emerged from an analysis of scanning tunneling microscopy data in halos around the vortex cores. By extrapolation, these vortex halos would then overlap at a magnetic field scale where quantum oscillations have been observed. Here, we show that a biaxial pair density wave state gives a unique description of the quantum oscillation data, bolstering the case that the pseudogap phase in the cuprates may be a pair density wave state.