Max Born and the quantum theory Available to Purchase

Goldsmith does not seem to understand that krypton was also produced in the fission whose mass Meitner had to know.

Here and in what follows I will ignore the following subtlety. In general these transition amplitudes are complex numbers and the squares are absolute values squared. For purpose of this review I will treat them as if they were real numbers. This will not affect anything.

The time dependence of $xnm(t)$ is $eiωnmt$⁠. The velocity is the first time derivative hence the factor of $i$⁠, while the acceleration is the second time derivative so you get $i2$⁠.

Most of it is reproduced in translation in van der Waerden, Ref. 13. For reasons that are unclear van der Waerden leaves out the last few pages of the original which Jordan later complained about.

I am grateful to Helmut Rechenberg for remarks on Jordan’s career and other points in my review.

I am grateful to Peter Goddard for supplying this and for his comments.

One again I am ignoring the fact that these functions are in general complex numbers so that you must take the absolute value squared.