Gauge theory of high-temperature superconductors and strongly correlated Fermi systems
- 1 January 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 37 (1), 580-583
- https://doi.org/10.1103/physrevb.37.580
Abstract
In this paper we show that the development of resonating-valence-bond correlations and the subsequent superconducting order in the high- oxide superconductors are described by an U(1) lattice-gauge theory. The insulating state has an almost-local gauge symmetry and doping changes this to a global symmetry, which is spontaneously broken at low temperatures, resulting in superconductivity. New topological excitations associated with the singlet field are found.
Keywords
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