LAS-nuVQE, which applies a non-unitary Jastrow operator on top of a LASSCF initial state plus a hardware-efficient ansatz, reaches chemical accuracy in noiseless simulations of H4 and square cyclobutadiene with under 70 gates.
R.; Alexeev, Y.; Gray, S
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Non-unitary Variational Quantum Eigensolver with the Localized Active Space Method and Cost Mitigation
LAS-nuVQE, which applies a non-unitary Jastrow operator on top of a LASSCF initial state plus a hardware-efficient ansatz, reaches chemical accuracy in noiseless simulations of H4 and square cyclobutadiene with under 70 gates.