Laser spectroscopy of simple atoms and precision tests of bound state   QED
  We present a brief overview of precision tests of bound state QED and mainly pay our attention to laser spectroscopy as an appropriate tool for these tests. We particularly consider different precision tests of bound state QED theory based on the laser spectroscopy of optical transitions in hydrogen, muonium and positronium and related experiments. 
Savely G. Karshenboim (.I. Mendeleev Institute for Metrology, St.   Petersburg, and Max-Planck-Institut fuer Quantenoptik, G...