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Physics
Rasmus Andersen's user avatar
Rasmus Andersen's user avatar
Rasmus Andersen's user avatar
Rasmus Andersen
  • Member for 1 year, 2 months
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question
8
Physical interpretation of the inner product between two quantum states
Jul 24, 2023
question
4
How to determine the projectors of a given basis?
Jul 2, 2023
question
3
What is the connection between the spectral theorem defined for Hilbert space and matrices respectively?
Jul 25, 2023
question
3
How can you determine direction of spin-1/2 states?
Sep 12, 2023
question
2
Understanding the potential step for a particle in 1D
Jul 18, 2023
question
2
Why does the inner product of a scalar operator vanish?
Jul 30, 2023
question
2
Why does $[L_z,L_{\pm}]\neq 0$ imply $[J^2,L_z]\neq 0$?
Aug 3, 2023
question
1
Physical interpretation of the bra-ket notation
Jul 5, 2023
question
1
Perturbation theory: Why is the inner product expressed as $\langle\psi_m^0|H'|\psi_n^0\rangle=-2V_0(-1)^{\frac{m+1}{2}}$? [closed]
Aug 5, 2023
question
1
Is the expression $E_n^0\langle\psi_n^0|\psi_n^2\rangle=E_n^2\langle\psi_n^0|\psi_n^2\rangle$ a valid expression?
Aug 5, 2023
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14
Why is it better to take with the knight than with the pawn in this position?
7
How can you use the Levi-Civita symbol (index notation) to derive an expression for $(\hat{r}\times\nabla)\cdot(\hat{r} \times\nabla)$?