Electron-hole coupling in high-Tc cuprate superconductors

TL;DR

This paper explores the coexistence of electron- and hole-like quasiparticles in high-Tc cuprates and discusses the potential formation of electron-hole pairs undergoing Bose-Einstein condensation as a mechanism for superconductivity.

Contribution

It introduces the idea that electron-hole pairing and Bose-Einstein condensation could be key to understanding high-Tc superconductivity in cuprates.

Findings

Coexistence of electron- and hole-like quasiparticles observed

Proposal of electron-hole pair formation as a superconductivity mechanism

Discussion of Bose-Einstein condensation relevance

Abstract

From recent Hall effect measurements and angle-resolved photo-emission spectroscopy the interesting picture emerges of co-existing hole- and electron-like quasiparticle bands, both in electron- and hole-doped superconducting cuprates. We reflect on the idea that bosonic electron-hole pairs may be formed in the cuprates and on the possibility that these pairs undergo Bose-Einstein condensation. The relevance to high-Tc superconductivity in the cuprates will be discussed.