000			01386 a2200181 4500
003			OSt
020			_a9789811296116
040			_cIIT Kanpur
041			_aeng
082			_a530 _bAl25e
100			_aAlegria, Francisco André Corrêa
245			_aThe electron and the lamb shift _cFrancisco André Corrêa Alegria
260			_bWorld Scientific _c2025 _aChennai
300			_axiv, 419p
520			_aThis book presents a detailed analytical description of the derivation of the Lamb shift in the Hydrogen atom using quantum field theory. This shift in energy levels, relative to what is predicted in traditional particle physics theory, is due to the phenomena of vacuum fluctuations and vacuum polarization which are accounted for in the quantum field theory as applied in particle physics. The derivation reported is done using perturbation theory and extends up to 4th order. This derivation has been carried out to higher orders by scientists all over the world throughout several decades and agrees exceptionally well with experimental data demonstrating the physical reality of vacuum fluctuations. This book also includes a historical overview of the understanding of the atom and its interaction with electromagnetic radiation as it was in the first half of the 20th century, when the calculation of the Lamb shift was first attempted.
650			_aPhysics
942			_cBK
999			_c567419 _d567419