Thomas-Fermi theory for atomic systems

Long Range Atomic Potentials in Thomas-Fermi Theory

We prove that the interaction among neutral atoms in ThomasFermi theory behaves, for large separation I, like Π~. The constant Γ is independent of the atomic nuclear charges, but does depend on the relative positions of the nuclei. We also show that Γ is not a simple sum of pair terms, i.e. in TF theory three and higher body terms persist into the asymptotic (in /) region.

Thomas-Fermi Theory of Fullerenes

We study C60 with the use of Thomas-Fermi theory. A spherical shell model is invoked to treat the nuclear potential, where the nuclear and core charges are smeared out into a shell of constant surface charge density. The valence electron distribution and the electrostatic potential are efficiently computed by integration of the Thomas-Fermi equation, subject to the shell boundary conditions. To...

Caloric Curve for Finite Nuclei in Thomas-fermi Theory

In a finite temperature Thomas-Fermi theory with realistic nuclear interactions, we construct caloric curves for finite nuclei enclosed in a sphere of about 4− 8 times the normal nuclear volume. The specific heat capacity Cv shows a peaked structure that is possibly indicative of a liquid-gas phase transition in finite nuclear systems.

Dipole Moments in Thomas-Fermi-Dirac and Thomas-Fermi Theories

Theory of ultracold atomic Fermi gases

The physics of quantum degenerate atomic Fermi gases in uniform as well as in harmonically trapped configurations is reviewed from a theoretical perspective. Emphasis is given to the effect of interactions which play a crucial role, bringing the gas into a superfluid phase at low temperature. In these dilute systems interactions are characterized by a single parameter, the s-wave scattering len...