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ynn
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7
Are eigenvectors always orthogonal each other?
Apr 24, 2017
5
Why is time-evolution operator unitary?
May 15, 2017
4
Can product of ket vector like $|A\rangle |B\rangle$ be defined?
Jul 14, 2018
3
What does a coordinate representation of density matrix mean?
Jul 7, 2019
2
Why is gauge-transformed four-potential a covariant vector?
Jan 27, 2017
1
Why, in Bragg's law, is the word "diffraction" used?
May 12, 2017
1
Eq. (2.4.7) of Weinberg, "Lectures on QM" from eq. (2.4.6)
Jun 5, 2017
1
Is an electric field a transverse wave not in a vacuum?
Nov 30, 2017
1
Where does this $dy$ come from?
Jul 19, 2018
1
How to handle bra-ket in logarithm?
Oct 1, 2018
Top network posts
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39
How to implement level based logging in golang?
28
Why is std::hash not guaranteed to be deterministic?
26
In Rust, what happens if main function returns Err?
20
Why is the default seed of `mt19937` 5489?
18
Are empty macros allowed by the C++ language standard?