The QED of Bernabéu-Tarrach sumrule for electric polarizability and its implication for the Lamb shift

Volodymyr Biloshytskyi, Iulian Ciobotaru-Hriscu, Franziska Hagelstein +2

We attempt to rehabilitate a sum rule (proposed long ago by Bernabéu and Tarrach) which relates the electric polarizability of a particle to the total photoabsorption of quasi-real…