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aitfel
  • Member for 6 years, 8 months
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9 votes
1 answer
1k views

Measure of Feynman path integral

7 votes
2 answers
2k views

Getting Feynman propagator using path integral

6 votes
0 answers
257 views

Geometric description of canonical commutation relation

6 votes
1 answer
147 views

Does Goldstone theorem have anything to do with Cosmic string

6 votes
1 answer
916 views

Why do we have residual symmetry when we already used all symmetry in gauge fixing of the worldsheet metric?

5 votes
2 answers
320 views

Particle statistics and interference pattern

5 votes
1 answer
223 views

How did Heisenberg come up with CCR?

5 votes
1 answer
734 views

What's a minisuperspace in quantum cosmology?

5 votes
1 answer
688 views

Fourier transform in Hawking's paper

5 votes
0 answers
136 views

Break down of time independent perturbation formula of quantum mechanics in quantum field theory

4 votes
0 answers
153 views

Solving scalar quantum field in 1+1D Milne space

4 votes
1 answer
149 views

Can QFT be constructed without using vacuum?

4 votes
0 answers
176 views

Renormalization in non-perturbative QFT ($n$-point function)

4 votes
0 answers
83 views

Error of $-i$ factor in light cone indices in conformal field theory in Becker's book

3 votes
1 answer
108 views

Usage of Lagrangian not Lagrangian density for quantum string in Polchinski

3 votes
1 answer
143 views

Scaling dimension/weight of $\partial^{\mu}$

3 votes
1 answer
181 views

Seiberg-Witten Gauge theory

3 votes
1 answer
87 views

Why doesn't a Planck type derivation work for Hawking radiation?

3 votes
0 answers
785 views

Do bubble/vacuum diagrams have some physical implication?

3 votes
0 answers
83 views

How is magnetic flux viewed in QED?

3 votes
1 answer
220 views

Why does annihilation and creation operator mix in curved spacetime?

2 votes
1 answer
379 views

Second-order perturbation and photon creation

2 votes
0 answers
294 views

Causal past of future null-like infinity for a black hole

2 votes
1 answer
508 views

Are the paths in a Feynman path integral not observable?

2 votes
1 answer
114 views

Are following statements valid for quantum gravity?

2 votes
1 answer
1k views

Does $L\cdot S$ commute with $J^2$?

2 votes
0 answers
225 views

Tunneling in quantum field theory

2 votes
1 answer
169 views

Ways to derive black-body radiation in Unruh effect

2 votes
1 answer
705 views

Main idea behind this paper on Closed-time-path functional formalism

2 votes
1 answer
131 views

Probability of a particle to go from one position to another