Degenerate perturbation theory EXAMPLE: determining energy levels of infinite cubical well

[@cademosley4886]

A quick correction. At 8:17, you mean sin^2(α) = (1-cos2(α))/2 (one minus cosine two alpha all divided by 2). It's not (1-cos^2(α))/2 (one minus cosine squared alpha all divided by 2) like you said. That's an easy thing to get mixed up since sin^2(α) also = 1-cos^2(α), and you correctly put the cos2(α) into the equation later anyway, so the final answer still ends up being right.

[@thermrm]

Thank you so much ❤

[@spyninja1456]

Thank you for this helpful video. What is V_0?

[@NickHeumannUniversity]

V_0 is simply the value of the potential. It can take any value, so we just give it a name: V_0

[@christianjourneytv1003]

thank you so much

[@rafiyamajeed1102]

thank you very munch

[@Faisal-qm2ux]

Thank u sir

[@fatimaalqormozi8564]

👏🏼

[@qi1548]

Thank you very very much