Electronic Resource
Springer
Few body systems
21 (1996), S. 167-185
ISSN:
1432-5411
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract. The Bethe-Salpeter amplitude is expanded on a hyperspherical basis thereby reducing the original four-dimensional integral equation into an infinite set of coupled one-dimensional ones. It is shown that this representation offers a highly accurate method to determine numerically the bound state solutions. For generic cases only a few hyperspherical waves are needed to achieve convergence, both for the ground state as well as for radially or orbitally excited states. The wave function is reconstructed for several cases and in particular it is shown that it becomes independent of the relative time in the nonrelativistic regime.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s006010050046
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