Solve Laguerre Equation for -a/z Potential | Quantum Mechanics

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SUMMARY

The discussion focuses on solving the Schrödinger equation for a potential of U = -a/z, represented as [- hbar^2 /(2m)] d^2 / dz^2 Psi(z) - a/z Psi(z) = E Psi(z). A solution approach is suggested using the associated Laguerre polynomials, specifically Phi^k_n (x) = e^{-x} x^{(k+1)/2} L^k_n (x), which satisfies a related differential equation. By setting k = 1, the equation aligns closely with the original Schrödinger equation, providing a pathway to find the solution.

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Students and researchers in quantum mechanics, particularly those tackling potential problems in quantum systems and seeking to understand the application of special functions like Laguerre polynomials.

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Homework Statement


I am doing the quantum mechanics and meet the Schrödinger question :
When the potential is given as U = -a/z ,the Schroedinger equation looks like

[- hbar^2 /(2m)] d^2 / dz^2 Psi(z) - a/z Psi(z) = E Psi(z).
And the thing here is that I couldn't solve this equation . Help me please

Homework Equations


The Attempt at a Solution


Phi^k_n (x) = e^{-x} x^{(k+1)/2} L^k_n (x) satisfies

(d^2 / dx^2 )Phi^k_n (x) + [ -1/4 + (2n +k+1)/(2x) - (k^2 -1)/(4x^2 ) ] Phi^k_n (x) = 0.

Therefore, if we let k = 1, then we get an equation similar to the above Schroedinger equation.
 
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