Practical stuff in quantum physics

[Demystifier]

I think it could be useful to have a thread where we can collect links to very practical material on quantum physics.

For the start, I would like to give the link to the wikipedia page on Common integrals in quantum field theory:
https://en.wikipedia.org/wiki/Common_integrals_in_quantum_field_theory

 

[Dr. Courtney]

https://en.wikipedia.org/wiki/List_of_quantum-mechanical_systems_with_analytical_solutions

http://www.physicspages.com/index-physics-quantum-mechanics/griffiths-introduction-to-quantum-mechanics-problems/

 

[ShayanJ]

https://en.wikipedia.org/wiki/Quantum_harmonic_oscillator

https://en.wikipedia.org/wiki/Creation_and_annihilation_operators

https://en.wikipedia.org/wiki/Ladder_operator

https://en.wikipedia.org/wiki/Angular_momentum_operator

https://en.wikipedia.org/wiki/Spin_(physics)

 

[Demystifier]

The online Wolfram computation/knowledge engine
http://www.wolframalpha.com/
is not only for quantum physics, but is extremely useful.
In particular, it contains a simplified free online version of Mathematica.
And even if you don't know how to use Mathematica, you can easily get useful results.
For example, you can type "solve quantum harmonic oscillator" or something like that, and you will get very useful results (try it!).