Consider the double delta-function potential
$V(x)=-\alpha\left[\delta(x+a)+\delta(x-a)\right]$
where $\alpha$ and $a$ are positive constants.
a) Plot the potential.
b) Compute the eigenenergies for the ground state and the first 3 excited states.
c) Let the depth of the potential develop in time, plot and observe the evolution of the eigenenergies.