Superconductivity in a Doped Mott Insulator

Dung-Hai Lee
2000 Physical Review Letters  
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.
doi:10.1103/physrevlett.84.2694 pmid:11017302 fatcat:v7uza7f6qnhupl4hxwxhzwu7mq