Optical sum rule violation, superfluid weight and condensation energy in the cuprates

@inproceedings{Hirsch2000OpticalSR,
  title={Optical sum rule violation, superfluid weight and condensation energy in the cuprates},
  author={Jorge E. Hirsch and Frank Marsiglio},
  year={2000}
}
The model of hole superconductivity predicts that the superfluid weight in the zero-frequency δ-function in the optical conductivity has an anomalous contribution from high frequencies, due to lowering of the system’s kinetic energy upon entering the superconducting state. The lowering of kinetic energy, mainly in-plane in origin, accounts for both the condensation energy of the superconductor as well as an increased potential energy due to larger Coulomb repulsion in the paired state. It leads… CONTINUE READING
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