Scatter Plot from Scientific Research

Relationship between LEE and 1/ L (even-numbered chain lengths only). The inset shows the magnified view of the large- L region (1/ L 0.1). A linear fit is applied, with the corresponding function displayed alongside the fitting line. Different random perturbations in J ( J within 5% and 10%) are considered in the DMRG calculations ( Methods ). Precision in determining the gap is 2 meV, which is estimated based on the energy resolution of our measurement (~2 meV) and the broadening (~5 meV) of the excitation peaks in the d 2 I /d V 2 spectra.

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