Probing ground-state properties of the kagome antiferromagnetic Heisenberg model using the variational quantum eigensolver

@article{Bosse2022ProbingGP,
  title={Probing ground-state properties of the kagome antiferromagnetic Heisenberg model using the variational quantum eigensolver},
  author={Jan Lukas Bosse and Ashley Montanaro},
  journal={Physical Review B},
  year={2022}
}
Finding and probing the ground states of spin lattices, such as the antiferromagnetic Heisenberg model on the kagome lattice (KAFH), is a very challenging problem on classical computers and only possible for relatively small systems. We propose using the Variational Quantum Eigensolver (VQE) to find the ground state of the KAFH on a quantum computer. We find efficient ansatz circuits and show how physically interesting observables can be measured efficiently. To investigate the expressiveness… 

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Data from "Probing ground state properties of the kagome antiferromagnetic Heisenberg model using the Variational Quantum Eigensolver"/wf_cost_fun_2x6_gradlog_ansatz_comparison

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