Recent content by AL-Hassan Naser

really guys I need help here

X=Aexp(ikx)+Bexp(-ikx) X*=Aexp(-ikx)+Bexp(ikx) X.X*=A^2+B^2+AB[exp(-2ikx)+exp(2ikx)] <XIX>=1 X(A^2+B^2) +[AB/2ik]*[exp(2ikx)-exp(-2ikx)] = 1 how can I solve that?! please help me i am losing time

in the solution for free electron we start with X(x) = A exp (ikx) + B exp (-ikx) then using boundary conditions we eliminate B if the wave is traveling in the positive direction and vice versa my questions are: 1. what is the boundary condition used? 2. is it X(-inf) = 0? because this would...

please somebody tell us how he canceled out B exp(-ikx) in the spatial part and mention the necessary boundary condition thx

thanks man, I love Alexandria too

Greetings Eng. AL-Hassan Nasser Chemical Engineer PhD. student in material science EJUST Alexandria Egypt Hi everyone

Also I am sorry but my background in Chemical Engineering so I didn't study quantum at all before so please give me any simple detail that can help me thanks

I am talking about the wave function form used in Schrödinger's equation

why is psi = cos (k r - w t) + i sin ( k r - w t) = e^ [ i ( k r - w t)]? my question precisely is why not: 1. psi = sin (k r - w t) + i cos ( k r - w t) ? 2. psi = sin (k r - w t) + i sin ( k r - w t) ? 3. psi = cos (k r - w t) + i cos ( k r - w t) ? why not any of these three? is...