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> If for the electron shell we can calculate pretty much anything we want from the first principles (energy spectra, the half-lives of unstable and metastable s
by jcranmer 3y ago
> If for the electron shell we can calculate pretty much anything we want from the first principles (energy spectra, the half-lives of unstable and metastable states, etc.), we can't do anything similar for the nucleus.
As I understand it, we can only really do that for a single-electron atoms. Multi-electron interactions get the same problem as inside the nucleus.
- fsh 3y agoNo, the problems are very different. The properties of multi-electron atoms can actually be calculated reasonably accurately with numerical methods, but including relativistic and quantum electrodynamic corrections is much harder than in single-electron systems. On the other hand, the coupling constant of the strong interaction is too large to permit perturbative calculations of bound systems. This makes calculations of nuclear properties fundamentally much more difficult, regardless of the particle number.
- cyberax 3y ago> As I understand it, we can only really do that for a single-electron atoms. We can do it analytically for single-electron atoms. We can solve it numerically for much larger systems.