@article{30da2cd324e74dc28bf2b13353835d19,
title = "The theory of high-Tc superconductors - comparisons with experiment",
abstract = "We show that the {"}normal{"} metal from which high-Tc oxide superconductors condense is a two-dimensional quantum spin fluid whose low-energy excitations are fermions with spin and no charge (spinons) and bosons with charge and no spin (holons). Conventional electron excitations cost 0.5 to 1 eV of energy. At Tc the holons pair condense due primarily to cooperative interlayer Josephson tunneling. We will discuss a number of experimental consequences of the above, and possibly also new developments in the theory of the insulating RVB.",
author = "Anderson, {Philip W.} and G. Baskaran and Zhou Zou and Joseph Wheatley and Ted Hsu and Shastry, {B. Sriram} and Benoit Doucot and Shoudan Liang",
note = "Funding Information: In this talk I want to emphasize several specific areas where the RVB theory can account for otherwise inexplicable experimental data in a semiquantitative way. I will leave for others and other occasions the fascinating and rather esoteric theoretical issues which arise in correlating the theory with general field-theoretic ideas, and also the possibility of extensions to other systems or situations. This paper is thus a progress report on our recent experimentally oriented work. It is important to recognize that in coming upon the {"}high-To superconductors{"}, we have encountered not one new phenomenon but three. It has become clear that attempting to find a {"}theory of high-To superconductivity{"} as though this were simply an unfamiliar manifestation of the usual type of superconductivity is incorrect. The properties of neither the {"}normal{"} metal above Tc nor of the nearby magnetic insulators are conventional, and it is in fact with these phases that most of our work has dealt. We have a serious theory of the actual manifestation of superconductivity but the parametrization and some of the actual phenomenology is still somewhat subject to guesswork and this part of the theory remains a bit tentative. Nonetheless there are observable consequences for the superconducting phase and we will discuss these. Once one realizes that conventional metal theory cannot deal with the state above To, the necessity which many experimentalists feel to relate their superconducting experiments to ordinary BCS theory disappears. It has been very noticeable, even at this conference, that experimental results which directly contradict BCS theory-such as, among others, the absence of a sharp infrared gap, the steepness of the specific heat peak, the universal {"}background{"} tunnelling conductance, the magnitude of the NMR * This work was supported by National Science Foundation Grant DMR 8518163 and by AFOSR-87-0392.",
year = "1988",
month = jun,
doi = "10.1016/0921-4534(88)90712-5",
language = "English (US)",
volume = "153-155",
pages = "527--530",
journal = "Physica C: Superconductivity and its applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "PART 1",
}