Superconductivity in a Doped Mott Insulator
Dung-Hai Lee
DOI 10.1103/PhysRevLett.84.2694 · Physical Review Letters
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Abstract
Starting from the d-wave resonating-valence-bond 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 and differences to a theory of superconductors with phase fluctuations.
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