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seen Nov 24 at 4:25

Nov
22
comment Quasiclassical QM for central fields
But why $(l + \frac{1}{2})^{2}$ term gives correct phase while $l(l + 1)$ doesn't?
Nov
22
comment Quasiclassical QM for central fields
@HDE226868 : yes. Of course, the quasiclassical approximation is valid for $l >>1$, so $\left( l + \frac{1}{2}\right)^{2} \to l(l + 1)$, but I want to understand why do we do that.
Nov
22
asked Quasiclassical QM for central fields
Nov
22
accepted Bohr-Sommerfeld quantization for different potentials
Nov
17
comment How to get result $3 \otimes 3 = 6 \oplus \bar{3}$ for $SU(3)$ irreducible representations?
@Innisfree : yes, I know something about it. Qmechanic, thank you. I'll check it.
Nov
17
asked How to get result $3 \otimes 3 = 6 \oplus \bar{3}$ for $SU(3)$ irreducible representations?
Nov
11
asked Bohr-Sommerfeld quantization for different potentials
Nov
10
accepted Integral over scalar product of eigenfunction of momentum operator and harmonic oscillator one
Nov
9
asked Integral over scalar product of eigenfunction of momentum operator and harmonic oscillator one
Nov
4
accepted Regularization of infrared divergences
Nov
3
accepted Electron's self-energy in QED in arbitrary gauge
Nov
3
revised What's the importance of background field gauge?
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Nov
3
asked What's the importance of background field gauge?
Nov
2
revised Electron's self-energy in QED in arbitrary gauge
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Nov
2
comment Regularization of infrared divergences
Thank you! But I have one question which is connected with your answer on my second question: why, for example, calculations of 1-loop self-energy of electron lead to infinities even after usage of dimensional regularization? I thought that dimensional regularization helps to avoid IR divergences as well as UV ones.
Nov
1
revised Regularization of infrared divergences
added 148 characters in body
Nov
1
revised Regularization of infrared divergences
added 2 characters in body
Nov
1
asked Regularization of infrared divergences
Oct
31
revised Electron's self-energy in QED in arbitrary gauge
deleted 15 characters in body
Oct
31
revised Electron's self-energy in QED in arbitrary gauge
added 38 characters in body