TY - JOUR
AB - As the nuclear charge Z is continuously decreased an N-electron atom undergoes a binding-unbinding transition. We investigate whether the electrons remain bound and whether the radius of the system stays finite as the critical value Zc is approached. Existence of a ground state at Zc is shown under the condition Zc < N-K, where K is the maximal number of electrons that can be removed at Zc without changing the energy.
AU - Bellazzini, Jacopo
AU - Frank, Rupert
AU - Lieb, Élliott
AU - Seiringer, Robert
ID - 1918
IS - 1
JF - Reviews in Mathematical Physics
TI - Existence of ground states for negative ions at the binding threshold
VL - 26
ER -