Inhomogeneous SSH models are exactly solvable when their Hamiltonians are constructed via doubling of Krawtchouk or q-Racah polynomial sequences, giving analytical spectra and eigenstates.
Absence of logarithmic enhancement in the entanglement scaling of free fermions on folded cubes,
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Inhomogeneous SSH models and the doubling of orthogonal polynomials
Inhomogeneous SSH models are exactly solvable when their Hamiltonians are constructed via doubling of Krawtchouk or q-Racah polynomial sequences, giving analytical spectra and eigenstates.