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Julian Ar.'s user avatar
Julian Ar.'s user avatar
Julian Ar.'s user avatar
Julian Ar.
  • Member for 6 years, 10 months
  • Last seen more than a month ago
  • Buenos Aires, Argentina
16 votes
3 answers
5k views

Confusion about rotations of quantum states: $SO(3)$ versus $SU(2)$

13 votes
2 answers
567 views

Does an electromagnetic field affect neutral particles via the metric because of the EM stress-energy tensor?

5 votes
1 answer
1k views

Is it possible to express the Lorentz force in terms of differential forms?

5 votes
2 answers
944 views

Relation between spinors and anticommutation relation of fermions

4 votes
2 answers
489 views

Doubt with Relativistic Lagrangian Expression

4 votes
2 answers
3k views

Why the $E$ of the time component 4-momentum is the total energy and not another?

3 votes
0 answers
154 views

Why a half-integer spin implies "antisymmetry" on the wave function? [duplicate]

2 votes
2 answers
1k views

Is there a conserved quantity for Parity Symmetry?

2 votes
1 answer
164 views

How does the LHC separate the protium isotope to have only protons for the collision?

2 votes
0 answers
65 views

Noether's theorem for fields and infinitesimal transformations [duplicate]

2 votes
0 answers
753 views

A few doubts with showing Lorentz invariance of Dirac equation and probability current

1 vote
0 answers
80 views

How to interpret the concept that a (scalar) field is a linear superposition of harmonic oscillators?

1 vote
1 answer
288 views

What's the difference between the exchanged photons in different EM interactions?