Closed-form TDVP equations and variational error rates are derived for Z_K-periodic matrix-product wavefunctions in the spin-J PXP model, with exact compact limits at J=1/2 and J to infinity.
Unlike in ⟨∂µ iψ |H|ψ ⟩c, the projector P can not be simply omitted in the energy variance
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Variational method for $\mathbb{Z}_K$ wavefunctions in spin-$J$ PXP model
Closed-form TDVP equations and variational error rates are derived for Z_K-periodic matrix-product wavefunctions in the spin-J PXP model, with exact compact limits at J=1/2 and J to infinity.