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johani
  • Member for 4 years
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4 votes
2 answers
469 views

Simplify quantum electrodynamics expression

3 votes
1 answer
2k views

Do $\gamma$ matrices commute with the Dirac spinor field?

2 votes
2 answers
2k views

Energy-momentum tensor of transformed Dirac Lagrangian

2 votes
1 answer
442 views

How to compute amplitudes when Feynman diagrams have loops

2 votes
1 answer
197 views

Why can we predict any experimental outcome, given a probability density over quantum states?

1 vote
2 answers
142 views

Trying to check current conservation under symmetry transformation

1 vote
1 answer
879 views

Charge conjugation transformation of complex scalar field

1 vote
1 answer
452 views

Breaking of a commutator involving Dirac spinors and gamma matrices

0 votes
1 answer
49 views

Frequencies associated with boson/fermion operators

0 votes
1 answer
493 views

Translational invariance and the derivation of the energy-momentum tensor