For physics major students who study hard, it is not very difficult to learn. If you lack relative background, please master them. Just do it. After that, you can learn.
I have learned quantum mechanics 6 years ago. I got my PHD in theoritical physics now. When I studied QM for the first time , I can't understand until I meet Griffith's book. It is very worth reading. I give you a suggestion that there is not an easy way to study QM.
Your must be familiar to...
the two energy level atom, whose hamiltonian takes the form
\hat{H_A}=E_g|g\rangle\langle g|+E_e|e\rangle\langle e|,
where E_g as well as E_e represent the eigenvalues and |g\rangle as well as |e\rangle denote the ground state and excited state.
There is an interaction between the atom...
by use of natural coordinates, it is very easy to prove that with constant speed and a fixed non-zero acceleration, the particle's motion must be circle. Moreover, if the particle's acceleration is zero, its trajectory is a straight line. I am a college teacher, believe in me.
I find it from the best book about lie algebra, which is called "Lie Algebras in Particle Physics, second edition", page 5. I advise you to have a look at it. Maybe it is easy for you. From your reply, I can deduce that you are really knowlegeable. Thank you.