Entanglement and confinement: A new pairing mechanism in high-T_{C} cuprates

TL;DR

This paper introduces the RECHP theory, a novel entanglement-based pairing mechanism that explains the complex phase diagram and various phenomena observed in high-Tc cuprates, unifying their superconducting and pseudogap behaviors.

Contribution

It proposes the RECHP model as a new entanglement and confinement pairing mechanism that comprehensively explains high-Tc cuprates' phase diagram and related experimental observations.

Findings

Explains the pseudogap linearly decreasing T* and T*-singularity at the superconducting dome peak.

Accounts for the equality of Tc and T* at optimal doping.

Describes the duality of spin gap and strange metal phase, and the linear-T resistivity in the strange metal phase.

Abstract

We demonstrate that entanglement and confinement hole pairing (ECHP) is a precise physics of the entanglement framework of the RVB theory of high-Tc cuprates. Our novel strong ECHP mechanism explains the entire phase diagram of both electron and hole-doped cuprates, notably the linearly decreasing T* at the pseudogap but with "T*-singularity" at the peak of the superconducting (SC) dome, the Tc=T* at the optimum doping and the rest of the overdoped regions of the SC dome, the duality of the spin gap and strange metal phase, the presence of the parallel superconducting stripes in the CuO plane (spin-polarized and spin-unpolarized channels), and the linear-T resistivity of the strange metal phase above the overdoped regions of the SC dome. This also explains the experimental spin textures of the cuprates. We refer to our new ECHP model as a resonating entanglement and confinement hole pair (RECHP) theory. Based on RECHP theory, we were able to provide a conceptual and comprehensive semiquantitative explanation of the entire phase diagram, thus providing the sought-after pairing mechanism responsible for the entire phase diagram of high-T_{C} cuprates.