Sketching the Theory of Copper Oxide High Temperature Superconductivity

TL;DR

This paper develops a theoretical framework for understanding high-temperature superconductivity in copper oxides, emphasizing the role of charge stripes, anti-ferromagnetic states, and electron correlations in the material's phase behavior.

Contribution

It introduces a new theoretical approach connecting charge stripes and anti-ferromagnetic states to superconductivity and pseudogap phenomena in copper oxide HTSC.

Findings

Charge stripes form boundaries between degenerate AFM states.

Theoretical expression for charge-driven AFM magnons matches experiments.

Double correlation theory explains superconductive gap and pseudogap.

Abstract

The role of the anti-bonding state in the electron correlations in Copper Oxide HTSC is analyzed. Then the t-J Hamiltonian is used to establish the formation of the charge stripes in underdoped oxides. It is proposed that these stripes make up the boundaries between the two degenerate anti-ferromagnetic (AFM) states, and that they are a key factor in switching between these states. We also provide a theoretical expression for the charge driven AFM magnons that have been observed by Neutron scattering experiments. Finally, the double correlation theory is applied to the stripe phase of holes to result in the superconductive gap and in the "pseudogap".