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- Its abbreviation q.e.d. is used once in 1598 by Johannes Praetorius, more in 1643 by Anton Deusing, extensively in 1655 by Isaac Barrow in the form Q.E.D., and subsequently by many post- Renaissance mathematicians and philosophers.
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Its abbreviation q.e.d. is used once in 1598 by Johannes Praetorius, [6] more in 1643 by Anton Deusing, [7] extensively in 1655 by Isaac Barrow in the form Q.E.D., [8] and subsequently by many post-Renaissance mathematicians and philosophers.
In 1928 the English physicist P.A.M. Dirac laid the foundations for QED with his discovery of a wave equation that described the motion and spin of electrons and incorporated both quantum mechanics and the theory of special relativity.
- The Editors of Encyclopaedia Britannica
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. [1][2][3] In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. [2]
Nov 10, 2023 · However, 75 years ago this year saw the debut of quantum electrodynamics (QED), which completes the original project of quantum theory: explaining the structure of atoms and their...
QED was the first successful quantum field theory, incorporating such ideas as particle creation and annihilation into a self-consistent framework. The development of the theory was the basis of the 1965 Nobel Prize in physics, awarded to Richard Feynman, Julian Schwinger and Sin-itero Tomonaga.
Its abbreviation q.e.d. is used once in 1598 by Johannes Praetorius, more in 1643 by Anton Deusing, extensively in 1655 by Isaac Barrow in the form Q.E.D., and subsequently by many post-Renaissance mathematicians and philosophers.
The modern Quantum Electrodynamics (QED) developed mainly by Schwinger [1], Feynman [2], Tomogana [3] and Dyson [4] was connected from the very begining with atomic theory. One of the first great successes of QED was the explanation of the Lamb Shift in atomic hydrogen [5], made by Bethe [6], Kroll and Lamb [7], French and Weisskopf [8].
