Semiclassical description of shell effects in finite fermion systems.
Advances in Solid State Physics 41, p. 459.
Since its first appearance in 1971, Gutzwiller\'s trace formula has been extended to systems with continuous symmetries, in which not all periodic orbits are isolated. In order to avoid the divergences occurring in connection with symmetry breaking and orbit bifurcations (characteristic of systems with mixed classical dynamics), special uniform approximations have been developed. We first ...
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