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首页> 外文期刊>Physical review, B. Condensed matter and materials physics >Erratum: Topological entanglement entropy of Z_2 spin liquids and lattice Laughlin statesPhys. Rev. B 84, 075128 (2011)1
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Erratum: Topological entanglement entropy of Z_2 spin liquids and lattice Laughlin statesPhys. Rev. B 84, 075128 (2011)1

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摘要

In Ref. 1 we reported the value of topological entanglement entropy is γ = 0.584 ± 0.089 for a Z_2 spin liquid wave function constructed by Gutzwiller projecting a BCS mean-field state proposed in Ref. 2 for subsystem length scale L_A = 4. However, as pointed out to us and verified by further data collection, we believe our original result is inaccurate since it substantially underestimates the error. We modify this value to a cautious y = 0.288 f 0.107 (with the error bar still an estimate), which is further apart from the expectation of γ = log 2 ～ 0.693, suggesting that the finite size effect is even larger than previously expected. However, we have confirmed that no correction is necessary for our results on the chiral spin liquid and lattice Laughlin state wave functions, which are simpler to evaluate and apparently have shorter correlation length.

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