DUGi: Item | Recercat - Benchmark calculations on the lowest-energy singlet, triplet, and quintet states of the four-electron harmonium atom
DUGi: Item | Recercat - Benchmark calculations on the lowest-energy singlet, triplet, and quintet states of the four-electron harmonium atom D U G i UdG's digital documents access portal Home Browse by Title Browse by Author Browse by Subject DUGiDocs DUGiMedia DUGiFonsEspecials DUGiImatges RACO TDX MDX Recercat MDC Item Benchmark calculations on the lowest-energy singlet, triplet, and quintet states of the four-electron harmonium atom http://dugi.udg.edu/item/http:@@@@hdl.handle.net@@2072@@295617 For a wide range of confinement strengths , explicitly-correlated calculations afford approximate energies E() of the ground and low-lying excited states of the four-electron harmonium atom that are within few hartree of the exact values, the errors in the respective energy components being only slightly higher. This level of accuracy constitutes an improvement of several orders of magnitude over the previously published data, establishing a set of benchmarks for stringent calibration and tes