What Are Commutators and Their Role in Quantum Mechanics?

[schumi1991`]

Commutators In quantum...!

Recently my class was taught about commutators and their applications in angular momentum operator.Unfortunately due to health reasons I was not able to attend them and now can't get any extra classes and to make things worse the books I was consulting don't have this topic altogether.
I would really like to ask as to what is a commutator and what is it doing in quantum mechanics.
I have previous knowledge of operators of momentum(p) and energy(E).
Also I have no idea whatsoever about the hamiltonian operator...
PLease i really need help in this one as it's quite an important topic I have been told...
Thank You..
Also It would be greatly helpful if you could tell me as to where can I find study material related to it online...
:)

 

[jtbell]

Maybe one or more of these sources will help:

http://www.google.com/#sclient=psy&hl=en&q=commutators+in+quantum+mechanics

If you can formulate some specific questions based on what you find, you'll be more likely to get useful answers.

 

[schumi1991`]

Thanks... and I'm sorry for the premature bumping...

 

[Bill_K]

schumi1991, You'll get a quicker response the next time if you don't...scream!

 

[schumi1991`]

yeah I got that... And I again apologize to the forum.. :(
THanx