Schwinger's Principle and Gauge Fixing in the Free Electromagnetic Field
classification
✦ hep-th
math-phmath.MPquant-ph
keywords
covariantfieldfreegaugeprincipleschwingerabelianb-field
read the original abstract
A manifestly covariant treatment of the free quantum eletromagnetic field, in a linear covariant gauge, is implemented employing the Schwinger's Variational Principle and the B-field formalism. It is also discussed the abelian Proca's model as an example of a system without constraints.
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