List questions from quantum-mechanics

Published on 11 May 2022 - 4:00

112

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Summation of squared 3-j symbol

Published on 23 Feb 2026 - 10:17

27

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Question regarding conjugate operators and the harmonic operator.

Published on 01 Apr 2026 - 0:22

264

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Spherical harmonics as simultaneous eigenfunctions

Published on 29 Mar 2026 - 2:10

159

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Inner automorphisms of Pauli strings in the unitary subgroup of matrices

Published on 27 Mar 2026 - 18:09

48

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Inner Product of Quantum States - Is this Calculation Correct?

Published on 27 Mar 2026 - 3:41

82

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log det on density matrix plus identity

Published on 27 Mar 2026 - 1:43

180

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Difference between Quantum Mechanics and Quantum Computing

Published on 27 Mar 2026 - 1:42

303

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where does the airy function integral representation come from

Published on 24 Feb 2026 - 7:08

26

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If $U \subseteq V$ and $O \subseteq \mathrm{End}(V)$ are subrepresentations then $O(U) \cong O \otimes U$

Published on 01 Jun 2022 - 11:40

73

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What is an example of a function in $L^2$ such that momentum operator does not map it to $L^2$?

Published on 05 Jun 2022 - 12:41

81

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integrating multiplication of complex functions

Published on 27 Mar 2026 - 3:46

348

Views

If $\hat{A}$ commutes with $\hat{r}^2$, does $\hat{A}$ commute with $\hat{r}$?

Published on 10 Jun 2022 - 18:33

152

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Show That Wigner’s Theorem Defines a Surjective Homomorphism $\operatorname{U}(2) \rightarrow \operatorname{SO}(3)$

Published on 13 Jun 2022 - 21:17

173

Views

Mathematical Foundations of Quantum Mechanics

Published on 17 Jun 2022 - 11:48

List Question

What does it mean for the momentum operator P to satisfy P|n>=hn|n>?

Summation of squared 3-j symbol

Question regarding conjugate operators and the harmonic operator.

Spherical harmonics as simultaneous eigenfunctions

Inner automorphisms of Pauli strings in the unitary subgroup of matrices

Inner Product of Quantum States - Is this Calculation Correct?

log det on density matrix plus identity

Difference between Quantum Mechanics and Quantum Computing

where does the airy function integral representation come from

If $U \subseteq V$ and $O \subseteq \mathrm{End}(V)$ are subrepresentations then $O(U) \cong O \otimes U$

What is an example of a function in $L^2$ such that momentum operator does not map it to $L^2$?

integrating multiplication of complex functions

If $\hat{A}$ commutes with $\hat{r}^2$, does $\hat{A}$ commute with $\hat{r}$?

Show That Wigner’s Theorem Defines a Surjective Homomorphism $\operatorname{U}(2) \rightarrow \operatorname{SO}(3)$

Mathematical Foundations of Quantum Mechanics

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