2 papers
quant-ph2026
Instability of the undecidable behavior of the spectral gap in 1D
Laura Castilla-Castellano, Angelo Lucia
The problem of determining the existence of a spectral gap in a lattice quantum spin system was previously shown to be undecidable for one [J. Bausch et al., "Undecidability of the…
quant-ph2024
Undecidability of the spectral gap in rotationally symmetric Hamiltonians
Laura Castilla-Castellano, Angelo Lucia
The problem of determining the existence of a spectral gap in a lattice quantum spin system was previously shown to be undecidable for one [J. Bausch et al., "Undecidability of the…