Applicability of coupling strength estimation for linear chains of restricted access<xref rid="cpb_29_3_030305fn1" ref-type="fn">*</xref><fn id="cpb_29_3_030305fn1"><label>*</label><p>Project supported by Shanghai Sailing Program, China (Grant No. 16YF1412600) and the National Natural Science Foundation of China (Grant Nos. 11420101003, 11604347, 11827806, 11874368, and 91636105).</p></fn>

Applicability of coupling strength estimation for linear chains of restricted access**

Project supported by Shanghai Sailing Program, China (Grant No. 16YF1412600) and the National Natural Science Foundation of China (Grant Nos. 11420101003, 11604347, 11827806, 11874368, and 91636105).

Feng He^{1, 2}, Yan Tian-Min^{1, †}, Jiang Yuhai^{1, 2, 3, ‡}

The estimation of coupling strengths when Δλ_n is considered for each measurement. In a chain of 100 sites with J_{i, i + 1} ∈ [0.9, 1.1], the reconstructed J′i,i+1 are compared with J_{i, i + 1} in (a) when Δλ_n = 0. In (b), the reconstructed J′i,i+1 are shown when σ = 0.001. The errors δ J_{i, i + 1} are presented in (c), (d), and (e) for σ = 10^{− 1}, 10^{− 2}, and 10^{− 3}, respectively.