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- W1998662015 abstract "We explore the usefulness of a quantum fluid dynamics (QFD) approach for quantitative electronic structure calculations of many-electron systems. By combining QFD and density functional theory, a single time-dependent nonlinear QFD equation can be derived. The equation is further transformed into a diffusion-type form by an imaginary-time evolution method, whose asymptotic solution reaches a global minimum and the many-body ground-state wavefunction. The time-dependent generalized pseudospectral method is extended to solve the diffusion equation in spherical coordinates, allowing optimal and nonuniform spatial discretization and accurate and efficient solution of the diffusion function in space and time. The procedure is applied to the study of electronic energies, densities and other ground-state properties of noble gas atoms (He, Ne, Ar, Kr, Xe). The results are in good agreement with other best available values. The method offers a conceptually appealing and computationally practical procedure for the treatment of many-electron systems beyond the Hartree-Fock level." @default.
- W1998662015 created "2016-06-24" @default.
- W1998662015 creator A5028514592 @default.
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- W1998662015 date "2002-04-24" @default.
- W1998662015 modified "2023-10-02" @default.
- W1998662015 title "Quantum fluid dynamics approach for electronic structure calculation: application to the study of ground-state properties of rare gas atoms" @default.
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- W1998662015 doi "https://doi.org/10.1088/0953-4075/35/9/306" @default.
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