Let's see what might happen if we were … [and Ab^2 fixed where A is the amplitude to jump between adjacent states]. … We have an equation which says that [i.h_bar. times] the time rate of change of C(x)--the amplitude to find … way which is proportional to the second derivative … [and inversely proportional to the effective mass]. [This is the same as Shrodinger's equation for the motion of an electron along a line in free space.] … the correct fundamental quantum mechanical equation … has the same form you get for the … think of the differential equation … as describing the diffusion of probability amplitude from … amplitude to be at one point, it will, …
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