Commuting observables for angular momentum

[@piotrschmidt9004]

phi in spherical coordinates should be in this notation arctan(y/x) no arctan(y/z)

[@cafe-tomate]

Note: two matrices that do not commute can have a common eigenvector [x,p] = ihbar is a particular case

[@pixelberrychoicespodcast5861]

How can they? I mean unless you use the commutator factor i h bar and multiply with it the eigen functions won't be Same? No??

[@kaushikkangsabanik1140]

why the questions asked by students are omitted from the videos?? there are lot to learn from those questions too

[@jasonyao3753]

Here I am, a PhD student, taking online undergrad courses. I hope my department does not see how bad of an investment they have made :))))))))

[@not_amanullah]

Thanks ❤️🤍

[@not_amanullah]

This is helpful ❤️🤍

[@WayneL-gh6hd]

How to get L^2 is that formidable formula? I still cannot figure out.

[@liulmesfin-d5f]

Derive the laplacian using spherical coordinates

[@rituparnaghosh7675]

thanku sir

[@wondererasl]

How come the d/d phi equation ?

[@jamshedsaeed9445]

Ihope that you are fine sir . How to derive lx and y???

[@bobjones5869]

Jamshed saeed it’s in the previous video titled 20.3

[@jiaqigan6398]

It's better to review this problem in a linear algebra way. You just need to calculate the cross product of two vectors which are in the same plane. Like Lx equals the r vector( in the plane zy) multiply( cross product) the p vector(in the plane zy), fairly easy.

[@zphuo]

How to derive Lx and Ly??

[@HidrogenoyMau]

zp H from the classical definition L=rxp