Why the Lorentz group has complex generators in QFT treatments?
50572
Is there a general theorem stating why the restricted Lorentz group's exponential map is surjective?
83917
How can I prove that the following Lagrangian is Lorentz-invariant iff the axionic field is a pseudoscalar?
125565
Counting the number of propagating degrees of freedom in Lorenz Gauge Electrodynamics
154411
How can I intuitively understand complex exponents?
107572
How does the derivative with respect to the complex conjugate even make sense?
108062
How can we prove charge invariance under Lorentz Transformation?
121584
Rigor in quantum field theory
151523
Quasiclassical QM for centrally symmetric fields
99244
A question about causality and Quantum Field Theory from improper Lorentz transformation
82135
Lagrangian to Hamiltonian in Quantum Field Theory
131016
Question about Klein-Gordon field Lagrangian
56614
Why do the counterterms in renormalized $\phi^4$-theory with power two in fields give vertices and not propagators?
106863
Special relativity and imaginary coefficient of the time coordinate
8571
Translations in two dimensions - Group theory
100985
Effect of linear terms on a QFT
75394
Why is the $dx$ right next to the integral sign in QFT literature?
126388
Derivation of Lorentz Transformations