Use of Lambert's theorem for the n-dimensional Coulomb problem
Journal Article
·
· Physical Review. A
- Department of Physics (T30), Technische Universitaet Muenchen, James-Franck-Str., 85747 Garching (Germany)
- Institute for Theoretical Physics, Universitaet Regensburg, 93040 Regensburg (Germany)
We present the analytical solution in closed form for the semiclassical limit of the quantum-mechanical Coulomb Green's function in position space in n dimensions. We utilize a projection method which has its roots in Lambert's theorem and which allows us to treat the system as an essentially one-dimensional problem. The semiclassical result assumes a simple analytical form and is well suited for a numerical evaluation. The method can also be extended to classically forbidden space regions. Already for moderately large principal quantum numbers {nu}{>=}5, the semiclassical Green's function is found to be an excellent approximation to the quantum-mechanical Green's function.
- OSTI ID:
- 21313195
- Journal Information:
- Physical Review. A, Vol. 80, Issue 1; Other Information: DOI: 10.1103/PhysRevA.80.012101; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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