List questions from quantum-mechanics

Published on 14 Dec 2019 - 5:44

841

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Orthogonality of two wave functions

Published on 14 Dec 2019 - 8:56

92

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Missing term in path integral calculation?

Published on 16 Dec 2019 - 18:25

221

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How to reduce system of first-order differential equations?

Published on 17 Dec 2019 - 0:24

343

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Mazur-Ulam-like theorem for complex Hilbert spaces

Published on 26 Mar 2026 - 1:26

85

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Question about the proof that compatible obverables commute.

Published on 29 Dec 2019 - 8:19

415

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Why are trace-class unit-trace linear operators (like density operators) necessarily positive semidefinite?

Published on 29 Dec 2019 - 8:53

77

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Where precisely is topology required to prove the existence of non-zero eigenstates in the proof of the spectral theorem?

Published on 29 Dec 2019 - 13:08

42

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Interest of superdense coding

Published on 26 Mar 2026 - 23:21

95

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$\langle u| \langle v| A |u\rangle |v\rangle \geq 0$ for any $|u\rangle \in \mathcal{H}_1$ and $|v\rangle \in \mathcal{H}_2$. Then $A$ is Hermitian?

Published on 03 Jan 2020 - 12:13

144

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What's the Fourier transform of $f(x)/x$?

Published on 06 Jan 2020 - 16:37

208

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Commutator of Linear Operators Identities in Linear Algebra

Published on 07 Jan 2020 - 20:09

69

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Integral Representation of Hermitian Conjugation

Published on 23 Jan 2020 - 6:27

2.5k

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Commutator of $p^2$ and $x$

Published on 23 Jan 2020 - 18:33

213

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Are bra-vectors one-forms?

Published on 25 Mar 2026 - 23:17

List Question

Functional analysis book, Quantum mechanics

Orthogonality of two wave functions

Missing term in path integral calculation?

How to reduce system of first-order differential equations?

Mazur-Ulam-like theorem for complex Hilbert spaces

Question about the proof that compatible obverables commute.

Why are trace-class unit-trace linear operators (like density operators) necessarily positive semidefinite?

Where precisely is topology required to prove the existence of non-zero eigenstates in the proof of the spectral theorem?

Interest of superdense coding

$\langle u| \langle v| A |u\rangle |v\rangle \geq 0$ for any $|u\rangle \in \mathcal{H}_1$ and $|v\rangle \in \mathcal{H}_2$. Then $A$ is Hermitian?

What's the Fourier transform of $f(x)/x$?

Commutator of Linear Operators Identities in Linear Algebra

Integral Representation of Hermitian Conjugation

Commutator of $p^2$ and $x$

Are bra-vectors one-forms?

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