Reply to "Comment on 'Quantum fidelity approach to the ground-state properties of the one-dimensional axial next-nearest-neighbor Ising model in a transverse field' ".
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- Record sourced from PubMed, PMID 32794936.
- Also identified by DOI 10.1103/PhysRevE.102.016102.
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Abstract
We disagree with the objections raised by Nemati et al. regarding the phase transitions reported in our paper, where we used the fidelity method. Contrary to their claims, our fidelity calculations do not depend on energy level crossing between excited states. We obtain the same results just by analyzing the second derivative of the ground-state energy with respect to the interaction energy coupling J_{2}.