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Quantum Mechanics

Dirac and Antiparticles

 

 

Quantumelectrodynamics describes the interactions between electrons and photons.

 

In 1925, when he was 23 years old, Dirac started to built on the theories which Heisenberg and Schrödinger had developed and generalised them. He also added in relativity and spin for good measure. He applied his new generalised theory of quantum mechanics to Maxwell's equations which describe electromagnetic fields. This was the very first 'Quantum Field Theory.' Despite formidable calculation difficulties which often generated infinite results, this theory lead the way to a plethora of new quantum field theories which are used routinely today to describe particles and their interactions. One of these, Quantum Electrodynamics or QED which describes the interactions between electrons and photons, is a brilliant success and has been tested successfully to 2 parts in 1 000 000 000 000!

 

Related Laureates

 The Nobel Prize in Physics 1932 - Werner Karl Heisenberg »  The Nobel Prize in Physics 1933 - Erwin Schrödinger »  The Nobel Prize in Physics 1933 - Paul Adrien Maurice Dirac »
 



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