Structured state preparation in QCQMC improves energy accuracy over pure variational methods across molecular, condensed-matter, nuclear, and graph problems.
P´ erez-Obiol, S
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Brillouin-Wigner perturbation theory plus Hartree-Fock mean-field approximation upgrades quasiparticle nuclear Hamiltonians, yielding <0.2% and ~2% ground-state energy errors versus exact shell-model results in the sd shell while preserving qubit efficiency.
Proton-neutron entanglement entropy is shown to track the formation of the island of inversion in Ne, Mg, and Si isotopes, with mutual information revealing stronger proton-neutron correlations in excited states than in ground states.
citing papers explorer
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A unified quantum computing quantum Monte Carlo framework through structured state preparation
Structured state preparation in QCQMC improves energy accuracy over pure variational methods across molecular, condensed-matter, nuclear, and graph problems.
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Improved quasiparticle nuclear Hamiltonians for quantum computing
Brillouin-Wigner perturbation theory plus Hartree-Fock mean-field approximation upgrades quasiparticle nuclear Hamiltonians, yielding <0.2% and ~2% ground-state energy errors versus exact shell-model results in the sd shell while preserving qubit efficiency.
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Entanglement study in the island of inversion region using \textit{ab initio} approach
Proton-neutron entanglement entropy is shown to track the formation of the island of inversion in Ne, Mg, and Si isotopes, with mutual information revealing stronger proton-neutron correlations in excited states than in ground states.