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illuminato
  • Member for 5 years, 10 months
  • Last seen more than a month ago
180 votes
2 answers
27k views

Why do we not have spin greater than 2?

  • 2,733
109 votes
7 answers
40k views

What's inside a proton?

92 votes
20 answers
178k views

What software programs are used to draw physics diagrams, and what are their relative merits?

90 votes
11 answers
31k views

Quantum Field Theory from a mathematical point of view

  • 1,393
84 votes
24 answers
92k views

List of freely available physics books

  • 1,085
62 votes
7 answers
14k views

Rigor in quantum field theory

  • 3,615
43 votes
10 answers
27k views

Online QFT video lectures

  • 3,306
38 votes
3 answers
29k views

What is the decay width and why is it given in energy units?

  • 1,705
31 votes
2 answers
4k views

What the heck is the sigma (f0) 600?

27 votes
16 answers
6k views

Learning physics online?

  • 3,659
17 votes
8 answers
5k views

Software for physics calculations [closed]

  • 1,935
17 votes
2 answers
4k views

What is the difference between Chiral anomaly, ABJ anomaly, and Axial anomaly?

  • 179
16 votes
1 answer
3k views

How does the Ward-Takahashi Identity imply that non-transverse photons are unphysical in QED?

  • 3,292
15 votes
1 answer
2k views

QED and anomaly

  • 24.6k
15 votes
3 answers
2k views

Why are the metric and the Levi-Civita tensor the only invariant tensors?

  • 42.6k
14 votes
2 answers
13k views

Lowering/raising metric indexes

  • 3,761
14 votes
1 answer
1k views

Chiral anomaly in odd spacetime dimensions

  • 5,993
11 votes
2 answers
2k views

Pseudoscalar action in classical field theory

  • 355
11 votes
5 answers
2k views

Is Parity really violated? (Even though neutrinos are massive)

  • 9,361
9 votes
2 answers
2k views

Functional Derivative in the Linear Sigma Model

  • 2,164
7 votes
1 answer
4k views

How is polarization vector in QFT related to polarization in classical electrodynamics?

  • 371
7 votes
3 answers
3k views

Sign of the totally anti-symmetric Levi-Civita tensor $\varepsilon^{\mu_1 \ldots}$ when raising indices

  • 2,091
6 votes
2 answers
1k views

Behavior of Correlation functions/partition functions during phase transitions

  • 1,989
6 votes
1 answer
572 views

Parity violating Dirac particle

  • 8,813
5 votes
1 answer
253 views

Can the effective vertex for $\gamma\to3\pi$ be derived directly from the anomaly?

5 votes
2 answers
1k views

Doubts concerning Wigner's classification

  • 11.9k
5 votes
1 answer
783 views

Gauge invariance of $\theta$-term in QCD

  • 1,044
5 votes
1 answer
561 views

Antisymmetric tensor and pseudotensor

4 votes
1 answer
776 views

Axial anomaly in QCD VS axial anomaly in current algebra QCD

3 votes
1 answer
5k views

Fourier and inverse fourier transform in QFT

  • 517