Charged boson condensation in high-Tc superconductors
Xiao-Gang Wen, Rui Kan
DOI 10.1103/PhysRevB.37.595 · Physical Review B
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Abstract
We explore the superconducting transition in the RVB (resonant valence bond) model, assuming that the superconductivity is due to a Bose-Einstein condensation of charged bosons in the RVB vacuum. It appears that the charged bosons behave like a weakly interacting 2+ε dimensional boson gas and that the RVB superconductors exhibit many two-dimensional properties. Among others are a linear temperature dependence of the critical fields, which has already been observed in experiments, and a linear doping dependence of the transition temperature.
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