Analytic method for GGE quasi-momentum distribution in degenerate free-fermion models plus a conjecture adjusting the quasi-particle entanglement formula, tested numerically with good agreement on local observables but small deviations on entanglement.
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cond-mat.stat-mech 3years
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A perturbation of two Ising chains (or interpolation between Jordan-Wigner and Fendley FFD models) yields an FFD-solvable spin chain without exponential degeneracies for generic couplings.
Derives path-product expansion for free-fermion modes and local conserved charges in generalized free-fermion models from Krylov basis generating function.
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Correlation and entanglement dynamics of free fermions in disguise
Analytic method for GGE quasi-momentum distribution in degenerate free-fermion models plus a conjecture adjusting the quasi-particle entanglement formula, tested numerically with good agreement on local observables but small deviations on entanglement.
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Free fermions in disguise without exponential degeneracies
A perturbation of two Ising chains (or interpolation between Jordan-Wigner and Fendley FFD models) yields an FFD-solvable spin chain without exponential degeneracies for generic couplings.
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Solving models with generalized free fermions II: Path-product expansion and conserved charges
Derives path-product expansion for free-fermion modes and local conserved charges in generalized free-fermion models from Krylov basis generating function.