Excited states via the AGP polarization propagator. I. Application to Li2

作者: E. Sangfelt , H. A. Kurtz , N. Elander , O. Goscinski

DOI: 10.1063/1.448138

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摘要: An approximation to the polarization propagator using an optimized antisymmetrized geminal power (AGP) wave function as a reference state is discussed. As application, potential energy curves and spectroscopic constants for some of low‐lying electronic states in Li2 are given. Transition moments radiative lifetimes experimentally observed B 1Πu–X 1Σ+g A 1Σ+u–X 1Σ+g transitions also presented. Excellent agreement with experiment theoretical calculations multiconfigurational self‐consistent field (MCSCF) type obtained. off

参考文章(56)
Y. Öhrn, G. Born, Molecular Electron Propagator Theory and Calculations Advances in Quantum Chemistry. ,vol. 13, pp. 1- 88 ,(1981) , 10.1016/S0065-3276(08)60291-9
GY. Csanak, H.S. Taylor, Robert Yaris, Green's Function Technique in Atomic and Molecular Physics Advances in atomic and molecular physics. ,vol. 7, pp. 287- 361 ,(1971) , 10.1016/S0065-2199(08)60363-2
Nils Elander, Jens Oddershede, Nelson H. F. Beebe, On the a 1II-X1sigma+ Band System in CH+ and CD+: Theoretical Spectroscopic Constants and Lifetimes The Astrophysical Journal. ,vol. 216, pp. 165- 173 ,(1977) , 10.1086/155457
Poul Jo/rgensen, Jens Oddershede, Mark Ratner, Self-consistent time-dependent Hartree--Fock scheme Journal of Chemical Physics. ,vol. 61, pp. 710- 718 ,(1974) , 10.1063/1.1681950
Jens Oddershede, Polarization Propagator Calculations Advances in Quantum Chemistry. ,vol. 11, pp. 275- 352 ,(1978) , 10.1016/S0065-3276(08)60240-3
Bo Jönsson, Björn O. Roos, Peter R. Taylor, Per E. M. Siegbahn, MCSCF–CI calculations of the ground state potential curves of LiH, Li2, and F2 Journal of Chemical Physics. ,vol. 74, pp. 4566- 4575 ,(1981) , 10.1063/1.441645
Mark L. Olson, Daniel D. Konowalow, The lowest 1Πg, 3Πg, 1Πu and 3Πu states of Li2 principles and practice of constraint programming. ,vol. 22, pp. 29- 39 ,(1977) , 10.1016/0301-0104(77)85205-1
D. J. ROWE, EQUATIONS-OF-MOTION METHOD AND THE EXTENDED SHELL MODEL. Reviews of Modern Physics. ,vol. 40, pp. 153- 166 ,(1968) , 10.1103/REVMODPHYS.40.153
Brian Weiner, Osvaldo Goscinski, Excitation operators associated with antisymmetrized geminal-power states Physical Review A. ,vol. 27, pp. 57- 71 ,(1983) , 10.1103/PHYSREVA.27.57
A. K. Cline, Scalar- and planar-valued curve fitting using splines under tension Communications of the ACM. ,vol. 17, pp. 218- 220 ,(1974) , 10.1145/360924.360971