Quantum Field Theory
... no spooky action at a distance (Einstein)
Early Results
Relativistic Quantum Mechanics Klein-Gordon Equation
Dirac Equation
The Dawn of QFT Spinors
Feynman Slash Notation
Klein-Gordon Field
Dirac Field
Grassman Variable
Conformal Field Theory
Countdown to the Standard Model
From a framework to a model Yang-Mills Theory
Quantum Electrodynamics
Quantum Chromodynamics
Electroweak Theory
Higgs Mechanism
Standard Model
Semi-Classical Gravity and the Dark Age Hawking Radiation
Chandrashekhar Limit
Problems with the Standard Model
Beyond the Standard Model Beyond the Standard Model
Quantum Gravity
Theory of Everything
Related De Donder-Weyl Theory

Feynman Slash Notation (also known as the Dirac Slash Notation is a notation for converting covectors into operators on spinors. It is defined as follows:

\not \Alpha := \gamma^\mu \Alpha_\mu

IdentitiesEdit this section

\not \Alpha\not \Alpha=\gamma^\mu \Alpha_\mu \gamma^\mu \Alpha_\mu = \Alpha\cdot \Alpha=\Alpha^2

More generally,

\not \Alpha \not \Beta + \not \Beta\not \Alpha = \gamma^\mu \Alpha_\mu \gamma^\mu \Beta_\mu  \gamma^\mu \Beta_\mu \gamma^\mu \Alpha_\mu   =2\Alpha\cdot \Beta

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