A new calculation of the electron's self-energy improves determination of fundamental constants
When quantum electrodynamics, the quantum field theory of electrons and photons, was being developed after World War II, one of the major challenges for theorists was calculating a value for the Lamb ...
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The Standard Model explained: A deep dive into modern physics – part II
In 1913, Neils Bohr proposed that electrons in an atom orbit ... In the same year, Paul Dirac extended Schrödinger’s work by introducing Dirac notation. He also introduced the Dirac equation ...
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Rutherford and Bohr describe atomic structure
Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is ...
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From even better to still better quantum tools, a rising helix of creativity will catalyse new dreams and forge new realities
These ideas of Einstein and Bohr flatly contradicted basic principles ... (In 1925, Heisenberg was 24, Paul Dirac was 23, while “old man” Erwin Schrödinger was 38. Heisenberg got the physics ...
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Équation de Dirac - Définition
Cette équation décrit le comportement de particules élémentaires de spins demi-entiers, comme les électrons. Dirac cherchait à transformer l'équation de Schrödinger afin de la rendre invariante par ...