Lamb shift

English Etymology Named after American physicist Willis Lamb (1913-2008). Noun en quantum mechanics quantum electrodynamics A small difference between the energy levels 2S½ and 2P½ of the hydrogen atom, not predicted by the Dirac equation, whose detection in the Lamb–Retherford experiment of 1947 foreshadowed the development of quantum electrodynamics (in which the discrepancy is explained to be an effect of the emission and re-absorption of virtual photons); such a difference between otherwise expectedly equal energy levels of hydrogen or any other type of atom. en 1997 Heinrich F. Beyer; w:de:Heinz-Jürgen Kluge; Viatcheslav P. Shevelko X-Ray Radiation of Highly Charged Ions https://books.google.com.au/books?id=8_AJFBC2-BsC&pg=PA75&dq=%22Lamb+shift%22%7C%22Lamb+shifts%22&hl=en&sa=X&ved=0ahUKEwiEx9TJyJriAhVF7XMBHS64BY0Q6AEImgEwGA#v=onepage&q=%22Lamb%20shift%22%7C%22Lamb%20shifts%22&f=false 75 Springer In recent years, a significant progress has been achieved in accurate measurements of the energy levels in heavy few-electron HCI including the 1s Lamb shift in H-like uranium [3.73-75], the hyperfine structure of H-like bismuth [3.69] and the ground state energies of He-like ions [3.29,20]. en 2001 J. D. Silver Chapter 10: The Oxford EBIT John Gillaspy Trapping Highly Charged Ions: Fundamentals and Applications w:Nova Science Publishers https://books.google.com.au/books?id=jLAuuBfMr8sC&pg=PA279&dq=%22Lamb+shift%22%7C%22Lamb+shifts%22&hl=en&sa=X&ved=0ahUKEwiEx9TJyJriAhVF7XMBHS64BY0Q6AEIogEwGQ#v=onepage&q=%22Lamb%20shift%22%7C%22Lamb%20shifts%22&f=false 279 Whilst I was there, I became interested in the possibility of measuring Lamb shifts in hydrogenic ions using radio-frequency spectroscopy (1) and laser spectroscopy as a means of testing quantum electrodynamics (QED). en 2007 Michael I. Eides; Howard Grotch; Valery A. Shelyuto Theory of Light Hydrogenic Bound States https://books.google.com.au/books?id=0shvI3uqVx0C&pg=PA241&dq=%22Lamb+shift%22%7C%22Lamb+shifts%22&hl=en&sa=X&ved=0ahUKEwiEx9TJyJriAhVF7XMBHS64BY0Q6AEIRDAG#v=onepage&q=%22Lamb%20shift%22%7C%22Lamb%20shifts%22&f=false 241 Springer The linear combination of the , and Lamb shifts obtained in this manner admits direct comparison with the Lamb shift theory without any further complications. Translations difference between energy levels French: fr décalage de Lamb m, fr déplacement de Lamb m German: de Lamb-Verschiebung f Italian: it spostamento di Lamb m Portuguese: pt desvio de Lamb m Further reading Quantum electrodynamics Quantum field theory One-loop Feynman diagram Renormalization Shelter Island Conference Term symbol Vacuum energy Virtual particle Zeeman effect en eponyms