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    - $\large \color{DeepSkyBlue} \gamma^\mu$ are the Dirac matrices.  
    - $\large \color{DeepSkyBlue} m$ is the mass of the particle.  
 
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+### <p align="center">  Mid-20th Century – Foundation for Quantum Information
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 <br>
 
-## Mid-20th Century – Foundation for Quantum Information
 
 7. **John von Neumann (1932)**  
    * Formalized the mathematics of quantum mechanics and introduced operator theory.