Solution to the Schrödinger equation for a non rigid step

AI Thread Summary
The discussion focuses on solving the time-independent Schrödinger equation for a particle transitioning between two regions with different potential energies, specifically where the potential is a continuous function. The main challenge arises in the second region, where the potential is non-constant, leading to a differential equation that has not been easily solvable. Participants suggest that the solutions to this equation are Airy functions, which are relevant in quantum mechanics for such potential scenarios. The conversation emphasizes the need for alternative approaches to tackle the differential equation effectively. Understanding the role of Airy functions is crucial for resolving the problem.
Arturo Miranda
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I've been having troubles resolving the Schödinger's time independent one-dimensional equation when you have a particle that goes from a zone with a constant potential to a zone with another constant potential, yet the potential is a continuos function of the form:

$$
V(x)=\left\{
\begin{array}{lcl}
0&\text{if}&x<0\\
\displaystyle\frac{V_{0}}{d}x&\text{if}&0<x<d\\
V_{0}&\text{if}&d<x
\end{array}\right.
$$

My main problem is around the solution in the second region of the potential, the non-constant region, in which looks like:
$$E\psi(x)=\frac{\hbar^{2}}{2m}d_{x}^{2}\psi(x)+\frac{V_{0}}{d}x\,\psi(x)$$
If tried solving the differential equation by lowering it's order, yet I have not managed to do so. Is there another way of attacking the problem? Or how may I resolve the diff. equation?
 
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