The role of g-wave pairing and Josephson tunneling in high Tc superconductors

TL;DR

This paper explores how g-wave pairing interacts with d-wave in high Tc superconductors, revealing two condensates and unique Josephson tunneling properties, aligning with experimental data and suggesting ways to detect the g-wave component.

Contribution

It demonstrates the close relationship between g-wave and d-wave pairing in two-pocket Fermi surfaces and analyzes the unique Josephson tunneling properties of the two-component condensate.

Findings

G-wave pairing is closely related to d-wave in two-pocket Fermi surfaces.

Two macroscopic condensates arise from g-wave and d-wave pairing.

Josephson tunneling exhibits unique properties in this two-component system.

Abstract

The implications of the two-pocket Fermi surface for macroscopic quantum phenomena are considered. We demonstrate that in the case of the two-pocket Fermi surface the g-wave pairing is closely related to the d-wave one. As a result two macroscopic condensates arise. The Josephson tunneling for such two-component system has very special properties. We prove that the presence of the g-wave does not contradict the existing experimental data on tunneling. We also discuss the possible ways to experimentally reveal the g-wave component.