Except that in our result, the spectrum is either continuous, or the spectral gap is guaranteed to be >= 1 (in natural units). It does not become arbitrarily small in the gapped case. The reason you can't use this to…
Except that in our result, the spectrum is either continuous, or the spectral gap is guaranteed to be >= 1 (in natural units). It does not become arbitrarily small in the gapped case. The reason you can't use this to…