List questions from quantum-mechanics

Published on 02 Jun 2019 - 7:44

209

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Position representation of an operator

Published on 26 Mar 2026 - 16:10

91

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How boundary conditions for a green function is same a original function

Published on 26 Mar 2026 - 0:58

49

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Fundamental property of Green's function is violated

Published on 26 Mar 2026 - 1:08

179

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Lifting representation Heisenberg algebra

Published on 21 Mar 2026 - 16:10

357

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Orthonormality of Hermite function

Published on 10 Jun 2019 - 14:25

190

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When is $\exp(-iHt)$ well-defined?

Published on 27 Mar 2026 - 0:55

98

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What are the automorphisms on the strucuture consisting of the nonzero vectors of a Hilbert space with the orthogonality relation?

Published on 25 Mar 2026 - 11:22

76

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Hamiltonian Flows and Heisenberg picture of quantum mechanics

Published on 25 Mar 2026 - 3:03

121

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Confusion regarding $|A|^2 \int\limits_{-\infty}^\infty e^{i(p-p')x/h}=|A|^2 2\pi h\delta(p-p')$

Published on 13 Jun 2019 - 20:39

91

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Is $|a_1\rangle\langle a_2|\otimes |b_1\rangle\langle b_2| = |a_1b_1\rangle \langle a_2b_2|$? Why or why not?

Published on 14 Jun 2019 - 8:07

97

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Ehrenfest Theorem and correlation among observables at the quantum scale

Published on 25 Mar 2026 - 3:01

885

Views

Why can linear operators have $[A,B]=I$ in infinite dimensions when it is impossible in finite dimensions?

Published on 27 Mar 2026 - 10:24

1.2k

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Schrödinger equation involving the Dirac-Delta

Published on 26 Mar 2026 - 17:46

295

Views

Is the failure of $\mathcal{B}(H)\simeq H\otimes H^*$ in infinite dimensions the reason for non-normal states in quantum information?

Published on 23 Jun 2019 - 17:50

List Question

Quantum representation of a system of identical particles

Position representation of an operator

How boundary conditions for a green function is same a original function

Fundamental property of Green's function is violated

Lifting representation Heisenberg algebra

Orthonormality of Hermite function

When is $\exp(-iHt)$ well-defined?

What are the automorphisms on the strucuture consisting of the nonzero vectors of a Hilbert space with the orthogonality relation?

Hamiltonian Flows and Heisenberg picture of quantum mechanics

Confusion regarding $|A|^2 \int\limits_{-\infty}^\infty e^{i(p-p')x/h}=|A|^2 2\pi h\delta(p-p')$

Is $|a_1\rangle\langle a_2|\otimes |b_1\rangle\langle b_2| = |a_1b_1\rangle \langle a_2b_2|$? Why or why not?

Ehrenfest Theorem and correlation among observables at the quantum scale

Why can linear operators have $[A,B]=I$ in infinite dimensions when it is impossible in finite dimensions?

Schrödinger equation involving the Dirac-Delta

Is the failure of $\mathcal{B}(H)\simeq H\otimes H^*$ in infinite dimensions the reason for non-normal states in quantum information?

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