Where are we in the theory of High Temperature Superconductors ?

TL;DR

This paper reviews the current theoretical understanding of high-temperature superconductors, emphasizing the success of Anderson's theory while highlighting ongoing challenges in the field.

Contribution

It provides a summary of the progress made by Anderson's theory in explaining high Tc cuprates and discusses unresolved issues.

Findings

Anderson's theory has achieved qualitative and some quantitative success.

Several key challenges in understanding high Tc superconductors remain.

The review highlights areas needing further research.

Abstract

In this talk I will briefly review our present theoretical understanding of some of the important issues in the high Tc cuprates. In view of its success, at a qualitative level and some times quantitative level, the theory initiated by Anderson and developed further by him and collaborators will be discussed. Many issues that still challenges us will be pointed out.