Physics – Quantum Physics
Scientific paper
1998-02-04
Phys.Lett. A246 (1998) 530-533
Physics
Quantum Physics
3 pages, REVTEX, one figure
Scientific paper
10.1016/S0375-9601(98)00524-6
The position- and momentum-space information entropies of the electron distributions of atomic clusters are calculated using a Woods-Saxon single particle potential. The same entropies are also calculated for nuclear distributions according to the Skyrme parametrization of the nuclear mean field. It turns out that a similar functional form S=a+b ln N for the entropy as function of the number of particles N holds approximately for atoms, nuclei and atomic clusters. It is conjectured that this is a universal property of a many-fermion system in a mean field. It is also seen that there is an analogy of our expression for S to Boltzmann's thermodynamic entropy S=k ln W.
Massen S. E.
Panos C. P.
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