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@Jemurray3 @JamesJ Some basic QM help please!

http://onlinephysicsbooks.blogspot.com/2009/09/modern-quantum-mechanics.html

password:http://onlinephysicsbooks.blogspot.com

sure.that is the password.i have got it from the native blog

The example at the end seems to be my clue. Can anyone help me apply it to the problem at hand?

@UnkleRhaukus QM help

b) \[\cos ^2(\frac{\pi}{4}-\frac{x}{2})\]
isn't right?

but why?

I just got it a different wy, but your answer is right
what is \(u^+\) ?

u orthonormal... what different way?

\[\sin\left(\frac\pi4-\frac x2\right)=\cos\left(\frac\pi4+\frac x2\right)\]was all I think I needed

point c)
i found \[\frac{1}{2}\] and \[\frac{1}{2}\] is it correct?

I'm not there yet, let me write my way to do b)

Ok.

Yes, and so far the answer 1/2 is all that makes sense to me :(
let's try to think it thorugh

Ooops no... measurement 2: \[\frac{1}{2}+cx\]

oh I understand the second one...

It's not difficult... you have to substitute the approximation at the measurement...

yes, they both make sense now, we just made the mistake of actually subbing in x=0 at first :p

ooohhh, i think you're right...

So point d), measurement II.

Thank you!!! Anyway, all right but 1/2 +cx :-(

perhaps*

Problem 12? How much degrees?

75 i found...

will have a \(\cos^2\frac\pi8\) chance of getting though again*

Ok, now i have understand... thank you! :-)

Next week, next assignment :-) See you soon!

Welcome, and thank you :D
good teamwork, look forward to working with you again!

Me too, bye! :-)

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