Where are we in the theory of High Temperature Superconductors ?

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.

Talk given at the K S Krishnan Birth Centenary, Conference on Condensed Matter Physics, Department of Physics, University of Allahabad, Allahabad, India; 4-7 Dec 1998