Fractal lattices like the Sierpiński carpet suppress d-wave superconductivity at half filling while strongly enhancing extended s-wave pairing at other fillings through geometric frustration of sign-changing order parameters.
Lecture 6.5 — RMSProp: Divide the gradient by a running average of its recent magnitude,
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Extended Hubbard model on fractals: d-Wave superconductivity and competing pairing channels
Fractal lattices like the Sierpiński carpet suppress d-wave superconductivity at half filling while strongly enhancing extended s-wave pairing at other fillings through geometric frustration of sign-changing order parameters.