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Luessiaw's user avatar
Luessiaw's user avatar
Luessiaw
  • Member for 3 years, 7 months
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那时，我将跨过沉沦的一切，向永恒开战。

At that time, I will transcend all despair and wage war against eternity.

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Top posts
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question
8
How to avoid paradoxes about time-ordering operation?
Jul 20, 2022
question
4
Doubts about "whether a given system has a Lagrangian" and "inverse problem of the calculus of variations"
Feb 12
answer
3
Why does the inner product of a scalar operator vanish?
Jul 31, 2023
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, 2023
answer
2
Wavefunction with two different values at same point
Sep 5, 2022
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, 2023
question
2
Validity of $\mbox{d}H/\mbox{d}t=\partial H/\partial t$ for dissipative systems
Jul 15
question
2
Paradox when expressing an operator in terms of creation/annihilation operators [duplicate]
Jan 12