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- W4330336247 abstract "Quantum computers can be used to calculate the electronic structure and estimate the ground state energy of many-electron molecular systems. In the present study, we implement the Variational Quantum Eigensolver (VQE) algorithm, as a hybrid quantum-classical algorithm to calculate the ground state energy of the molecules such as H3+, OH-, HF and BH3 in which the number of qubits has an increasing trend. We use the parity transformation for Fermion to qubit encoding and the Unitary Coupled Cluster for Single and Double excitations (UCCSD) to construct an ansatz. We compare our quantum simulation results with the computational chemistry approaches including Full Configuration Interaction (FCI), as benchmark energy and Unrestricted Hartree-Fock (UHF), as a common computational method. Our results show that there is a good agreement between molecular ground state energy obtained from VQE and FCI. Moreover, the accuracy of the ground state energies obtained from VQE in our work is higher than the previously reported values." @default.
- W4330336247 created "2023-03-22" @default.
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- W4330336247 date "2023-03-17" @default.
- W4330336247 modified "2023-09-27" @default.
- W4330336247 title "Molecular Electronic Structure Calculation via a Quantum Computer" @default.
- W4330336247 doi "https://doi.org/10.48550/arxiv.2303.09911" @default.
- W4330336247 hasPublicationYear "2023" @default.
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