List questions from quantum-mechanics

Published on 29 Mar 2026 - 22:26

416

Views

Schrodinger with real potential is self-adjoint?

Published on 28 Mar 2026 - 2:03

366

Views

Fourth order essentially self adjoint differential operator?

Published on 06 Apr 2017 - 18:08

126

Views

A differential equation containing an expectation value

Published on 29 Jan 2023 - 16:05

43

Views

Find self-adjoint of $P=|a \rangle \langle b |$

Published on 28 Mar 2026 - 2:04

23

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Is this the right way to find the size and the angle with respect to the given z-axis for the nitrogen atoms spin?

Published on 25 Mar 2026 - 17:42

50

Views

Generating random but non-uniform quantum state

Published on 26 Mar 2026 - 17:29

64

Views

I am having trouble proving that $L/2$ is the simplified answer to the trigonometric function $\sin^2(n\pi x/L)$.

Published on 02 Feb 2023 - 4:19

118

Views

Trace of product of orthogonal projectors is an inner product $\operatorname{tr}(\pi_{x'}\pi_{y'}) = |\langle y,x\rangle|^2$

Published on 29 Mar 2026 - 22:33

150

Views

Understanding how unitary operators act on Hilbert space

Published on 06 Feb 2023 - 3:42

158

Views

A particular map between subsets of SU(2) and SO(3)

Published on 28 Mar 2026 - 2:32

104

Views

General definition of POVM

Published on 07 Feb 2023 - 0:52

153

Views

Why the Markov chain transition matrix doesn't have an eigenvalue $\lambda=1$?

Published on 26 Mar 2026 - 6:33

89

Views

Details of a Fourier transform

Published on 10 Feb 2023 - 19:06

48

Views

What can we know about the fixed points of the action of a strongly continuos one-parameter subgroup of unitary operators?

Published on 10 Feb 2023 - 22:40

List Question

Confusion with Trace and Dirac (Bra-Ket) notation

Schrodinger with real potential is self-adjoint?

Fourth order essentially self adjoint differential operator?

A differential equation containing an expectation value

Find self-adjoint of $P=|a \rangle \langle b |$

Is this the right way to find the size and the angle with respect to the given z-axis for the nitrogen atoms spin?

Generating random but non-uniform quantum state

I am having trouble proving that $L/2$ is the simplified answer to the trigonometric function $\sin^2(n\pi x/L)$.

Trace of product of orthogonal projectors is an inner product $\operatorname{tr}(\pi_{x'}\pi_{y'}) = |\langle y,x\rangle|^2$

Understanding how unitary operators act on Hilbert space

A particular map between subsets of SU(2) and SO(3)

General definition of POVM

Why the Markov chain transition matrix doesn't have an eigenvalue $\lambda=1$?

Details of a Fourier transform

What can we know about the fixed points of the action of a strongly continuos one-parameter subgroup of unitary operators?

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