# Tag Info

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### Similarity transformations in QFT

I would like to give you a very important example related with the comment posted by Connor Behan. In the standard model Lagragian we find out that diagonalization is not possible for all terms in the ...
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• 849
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### Meaning of Bogolyubov transformations

This answer is inspired by the approach taken in Wald's Quantum Field Theory in Curved Spacetime and Black Hole Thermodynamics. When you canonically quantize a theory, you are typically trying to find ...
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### Meaning of Bogolyubov transformations

I'm not sure how much this high-level overview will help on its own, but maybe the material I've linked to will be a good starting point. transform even in flat spacetime If you describe Minkowski ...
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### Regarding notation used for infinitesimal parameters of the Lorentz algebra and generators of the Lorentz group

As I suspect many students of field theory will have the same question, I'll elaborate on @Rindler98 's answer: In the defining representation of the Lorentz group the matrix ${\omega^\mu}_\nu$ is ...

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