Solving the 3D Schrödinger Equation using Fourier Integral Transform

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The discussion focuses on solving the 3D Schrödinger equation using the Fourier integral transform. A user requests assistance with the equation, but the attachment containing the details is not visible and is in a format that raises security concerns. Participants emphasize the need for clearer communication, suggesting the use of LaTeX or image hosting for better visibility. The specific equation provided involves the time derivative of the wave function and includes initial and boundary conditions. Effective collaboration is encouraged to facilitate a quicker resolution to the problem.
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Homework Statement


please if anyone can help me to explain and solve the enclosed equation
 

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Hi Sahar.

Can you please use the \LaTeX capabilities of the forum, or make a screenshot and put it on a site like imageshack?
First of all your attachment is not visible until it is approved, second of all I don't like to open virus-sensitive files like .doc, and finally I don't have M$ Word on my computer.
So if you would switch to one of those options, you can expect much quicker help.
 
Here is her question:

How can we solve by using the Fourier integral transform
The 3D Schrödinger equation which given by the form

\frac{\partial \psi (x,t)}{\partial t}= \frac{i\eta}{2m} \frac{\partial^2 \psi}{\partial x^2}

with the following initial and boundary conditions :

\psi (x,0) = \psi_{\circ} (x)

\psi (x,t) \rightarrow 0 as \left|x \right| \rightarrow \infty, t>0
 
I tried to combine those 2 formulas but it didn't work. I tried using another case where there are 2 red balls and 2 blue balls only so when combining the formula I got ##\frac{(4-1)!}{2!2!}=\frac{3}{2}## which does not make sense. Is there any formula to calculate cyclic permutation of identical objects or I have to do it by listing all the possibilities? Thanks
Since ##px^9+q## is the factor, then ##x^9=\frac{-q}{p}## will be one of the roots. Let ##f(x)=27x^{18}+bx^9+70##, then: $$27\left(\frac{-q}{p}\right)^2+b\left(\frac{-q}{p}\right)+70=0$$ $$b=27 \frac{q}{p}+70 \frac{p}{q}$$ $$b=\frac{27q^2+70p^2}{pq}$$ From this expression, it looks like there is no greatest value of ##b## because increasing the value of ##p## and ##q## will also increase the value of ##b##. How to find the greatest value of ##b##? Thanks
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