List questions from quantum-mechanics

Published on 30 Apr 2017 - 19:16

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The problem of the commutator of Hermitian operators

Published on 04 May 2017 - 14:56

999

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Finding expected value of position squared in quantum mechanics

Published on 05 May 2017 - 0:49

60

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What is the nature of the diagonalizing matrix of certain types of matrices?

Published on 12 May 2017 - 4:27

172

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Evaluating Gibbs state in the second quantized formalism

Published on 26 Mar 2026 - 9:37

147

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Solving this momentum operator

Published on 26 Mar 2026 - 18:49

37

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Haag's theorem inequivalence equivalent to orthogonality

Published on 15 May 2017 - 8:20

83

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Do there exist real numbers such that the following inequality is violated?

Published on 16 May 2017 - 13:54

47

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Verify $\int_{-\infty}^{\infty}\frac{1}{\pi\hbar}\cos\left(\frac{p|x|}{\hbar}+\delta\right)\cos\left(\frac{p'|x|}{\hbar}+\delta\right)dx=\delta(p-p')$

Published on 19 May 2017 - 7:17

109

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Justifying that $\hat{H}^2\psi=\hat{H}(\hat{\psi})$, where $\hat{H}$ is a hamiltoniam operator

Published on 21 May 2017 - 18:11

692

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Absolute convergence of Dyson series for evolution operator

Published on 22 May 2017 - 16:10

526

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Question concerning trace over tensor products

Published on 01 Apr 2026 - 15:40

65

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Scattering theory, which formalism?

Published on 31 May 2017 - 4:31

380

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Does $Tr \ln M = \ln \det M$ hold for partial traces?

Published on 02 Jun 2017 - 9:30

393

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Summation formula for Hermite polynomials

Published on 25 Mar 2026 - 14:39

List Question

Numerical evaluation of path integrals in quantum mechanics

The problem of the commutator of Hermitian operators

Finding expected value of position squared in quantum mechanics

What is the nature of the diagonalizing matrix of certain types of matrices?

Evaluating Gibbs state in the second quantized formalism

Solving this momentum operator

Haag's theorem inequivalence equivalent to orthogonality

Do there exist real numbers such that the following inequality is violated?

Verify $\int_{-\infty}^{\infty}\frac{1}{\pi\hbar}\cos\left(\frac{p|x|}{\hbar}+\delta\right)\cos\left(\frac{p'|x|}{\hbar}+\delta\right)dx=\delta(p-p')$

Justifying that $\hat{H}^2\psi=\hat{H}(\hat{\psi})$, where $\hat{H}$ is a hamiltoniam operator

Absolute convergence of Dyson series for evolution operator

Question concerning trace over tensor products

Scattering theory, which formalism?

Does $Tr \ln M = \ln \det M$ hold for partial traces?

Summation formula for Hermite polynomials

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