Above Tc the thermal Hall conductivity is exactly κ_xy/T = (π² k_B²/6h) C tanh[Δ_pg(T)/(2 k_B T)], fixed by the Chern number and the measurable preformed-pair gap.
IV C, we fit the RMS finite-width deviation to an exponential envelope, δRMS(Ly) = " 1 NΦ X Φ |ν(Ly,Φ)−1| 2 #1/2 ≃A e −Ly/ξcyl
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Parity Anomaly of Preformed Pairs Governs the Thermal Hall Effect above $T_c$
Above Tc the thermal Hall conductivity is exactly κ_xy/T = (π² k_B²/6h) C tanh[Δ_pg(T)/(2 k_B T)], fixed by the Chern number and the measurable preformed-pair gap.