Superconductivity in a doped Mott insulator
arXiv:cond-mat/9909111 · doi:10.1103/PhysRevLett.84.2694
Abstract
Starting from the d-wave RVB mean-field theory of Kotliar and Liu, we present a new, long-wavelength/low-energy exact, treatment of gauge fluctuations. The result is a theory of gapless fermion quasiparticles coupled to superconducting phase fluctuations. We will discuss the physical implications, and the similarity/differences with a theory of BCS pairing with phase fluctuations.
Two additional references added