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  • Member for 9 years, 5 months
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  • New Zeland
6 votes
2 answers
2k views

Why does the photon propagator contain the metric tensor?

5 votes
1 answer
573 views

Is inflation theory really dead?

5 votes
2 answers
2k views

Chiral symmetry breaking and confusion with terminology

4 votes
0 answers
912 views

How to get the inverse of the propagator? [closed]

4 votes
0 answers
112 views

Why do we need any model beyond SM to fine-tune the Higgs mass?

4 votes
1 answer
3k views

Why $SU(3)$ has eight generators?

3 votes
2 answers
1k views

Deriving solution of the Renormalization Group Equation

3 votes
2 answers
773 views

How to construct generators and Lie Algebra for Lorentz group?

3 votes
1 answer
2k views

What's difference between C parity and charge?

3 votes
1 answer
460 views

Where do the quantum fields encode the spin information?

3 votes
1 answer
447 views

If isospin is conserved under strong interactions why it is represented by SU(2)?

3 votes
1 answer
143 views

How to build tetra-quark mesons symmetry group?

3 votes
1 answer
194 views

Two naive questions about gravitational waves

2 votes
0 answers
629 views

Where do pions go in the spontaneous symmetry breaking of the linear sigma model?

2 votes
4 answers
3k views

Physical meaning of linear combination of possible states in infinite well

2 votes
4 answers
2k views

Which one is inertial frame?

1 vote
3 answers
2k views

Klein Gordon for spin-1 particle photon

1 vote
1 answer
309 views

Why IR divergences cancel by cross sections of next-to-leading diagrams?

1 vote
1 answer
454 views

What makes red giants big? [duplicate]

1 vote
1 answer
550 views

How Ward Identity indicate vacuum polarization correction?

1 vote
1 answer
169 views

How to choose the proper loop correction?

0 votes
0 answers
67 views

How to apply cutoff in path integral?

0 votes
1 answer
76 views

How do we know the quantity of dark matter in the universe?

0 votes
1 answer
476 views

What's the significance of neutrino oscillations? [duplicate]

0 votes
0 answers
80 views

Does Expanding Universe conflict with the Thermodynamics 3rd Law? [duplicate]

0 votes
1 answer
254 views

Evaluation Feynman parameters from denominator

0 votes
1 answer
1k views

Green function solutions in electrostatics

0 votes
2 answers
684 views

Why Lagrangian of electromagnetism with Lorenz Gauge evolve Klein Gordon equation?