What is the microscopic interaction responsible for high temperature superconductivity (HTSC)? Here data on temporal relaxation of Tc and the room temperature conductivity in YBa2Cu3O(6+x) after abrupt alteration by light pulses or pressure changes are analyzed. The analysis proves, independently of microscopic details, that only electron-phonon interactions can cause HTSC in the cuprates; all other interactions are excluded by experiment.
@article{arxiv.cond-mat/0102108,
title = {Electron-Phonon Interactions Cause HTSC},
author = {J. C. Phillips},
journal= {arXiv preprint arXiv:cond-mat/0102108},
year = {2009}
}