Viable phenomenologies of the normal state of cuprates

TL;DR

This paper develops a scaling theory for the strange metal phase of cuprates using established temperature dependencies, successfully predicting various observable behaviors and critically comparing with holographic models.

Contribution

It introduces a phenomenological scaling framework based on experimental data, offering a new perspective on the normal state of cuprates and testing holographic approaches.

Findings

Predicted scaling behaviors match experimental data.

Contrasted phenomenological predictions with holographic models.

Provided critical assessment of holographic approach validity.

Abstract

We revisit the problem of constructing an elusive scaling theory of the strange metal phase of the cuprates. By using the four robust experimentally established temperature dependencies as the constitutive relations we then predict the scaling behaviors of a number of other observables, all those for which the reliable data are available being in agreement with experiment. Such predictions are also contrasted against the recent proposal inspired by the holographic approach, thus allowing one to critically assess the status of the latter.