Fourier Transforms (2)

I came across this statement in the print version of this article on a hypothetical elementary particle called an axion. The article is on a follow-up experiment to the PVLAS experiment using the double-pulsar system J0737 to test the birefringence of a strongly polarised beam of photons that had passed through a strong magnetic field. Regarding the delicate and exact calculations required to disentangle the change in polarisation (from linear to elliptical) from the effects of various frequency shifts owing to the double-pulsars' orbital and rotational effects...

Owing to the appalling complexities of the timings involved, the system can be regarded either as a nightmare for normal human beings or as a dream case for Fourier-analysis buffs.

Nice!