Assume that the trial wave function 1-ar-2 is chosen to, Ask an Expert

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Assume that the trial wave function = (1-ar)-2 is chosen to explain the hydrogen atom, where a is a variable parameter. Presume that is normalized. The resulting energy expression for the hydrogen atom is E= a2/5-a/2 in atomic units.
Find out the best value for the parameter a, for the energy and compare this to the exact value, E = -0.5 atomic units

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