Large-order dimensional perturbation theory for
- 30 March 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 68 (13) , 1992-1995
- https://doi.org/10.1103/physrevlett.68.1992
Abstract
An asymptotic expansion for the electronic energy of is developed in inverse powers of D, the spatial dimension, and the singularity structure in the D→∞ limit is elucidated by analysis of the coefficients at large order (∼30 to 45). For the ground state and several excited states, Padé-Borel summation yields an accuracy of eight or more significant figures.
Keywords
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