Physics
Luessiaw's user avatar
Luessiaw's user avatar
Luessiaw's user avatar
Luessiaw
  • Member for 2 years, 9 months
  • Last seen this week
  • China
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14
answers
17
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7
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12
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39
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6
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9
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29
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4
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11
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35
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3
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5
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16
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2
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16
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10
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All Questions Answers
Score Newest
question
7
How to avoid paradoxes about time-ordering operation?
Jul 20, 2022
question
3
Can energy constraint $\sum n_r\varepsilon_r=E$ for nearly independent particle systems be replaced by $1/E$ or any nonlinear function $f(E)$?
Aug 20, 2022
question
3
Why is the Lorentz transformation of fields linear?
Sep 21
answer
3
Why does the inner product of a scalar operator vanish?
Jul 31
question
2
Is the product of spin and momentum $\vec S\cdot\vec p$ a scalar operator?
Dec 23, 2022
question
2
Eigenstates of angular momentum in arbitrary dimension of representation and arbitrary direction
Jan 18
answer
2
Wavefunction with two different values at same point
Sep 5, 2022
question
1
What's the contraction for non-adjacent fields?
Jul 28, 2022
question
1
Can quantum field theory be used for atom-photon interaction? [closed]
Aug 1, 2022
question
1
Matrix element of $\exp(\vec v\cdot\vec J)$ [closed]
Jan 18

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