Single-spin-flip Metropolis-Hastings sampling breaks ergodicity and produces artifactually low energies in neural network studies of the kagome antiferromagnet, so the claimed spinon pair-density-wave ground state is unsupported.
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Comment on "Spin-1/2 Kagome Heisenberg Antiferromagnet: Machine Learning Discovery of the Spinon Pair-Density-Wave Ground State"
Single-spin-flip Metropolis-Hastings sampling breaks ergodicity and produces artifactually low energies in neural network studies of the kagome antiferromagnet, so the claimed spinon pair-density-wave ground state is unsupported.