Lacking the existence of stable nuclei with charge Z > 173 there is no immediate way to test the ideas about supercritical fields in QED. However, in a collision of two very heavy ions for a short period of time the electrons will experience the combined potential of both nuclei. If the nuclear motion is not too fast a super-heavy quasimolecule may be formed. As a prerequisite for dynamical calculations, in this chapter the electron states of a hypothetical stationary molecule are discussed by solving the two center Dirac equation. Special attention is devoted to the critical internuclear distance R cr, where the bound levels reach the lower continuum.
KeywordsUranium Posite Dinates Prolate
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