Michael Press <email@example.com> writes: > In article > <0.ef56b5652decd19bb478.20121128013501GMT.firstname.lastname@example.org>, > Ben Bacarisse <email@example.com> wrote: > > > Good quality, hardware-generated random number sequences (if our current > > understanding of quantum effects is correct) are random in a different > > way to the digits of pi. It helps if the terminology is be able to > > distinguish between them. > > I do not see how quantum effects can be used to generate > random sequences. Coherent systems are stable and highly, > if not perfectly, predictable. > > Hardware generated random sequences usually read Schottky > noise off some device (a sound card in a computer) and use > that. This can be modeled using entirely classical physics.
Are you sure? Shottky noise is white noise, and thus is indistinguishable from thermal (Johnson-Nyquist) noise. So you can statistically model it the same way, but that doesn't mean it's actually caused by classical mechanics. I can't find any references to Shottky noise that don't mention some quantum effect.
Phil -- I'm not saying that google groups censors my posts, but there's a strong link between me saying "google groups sucks" in articles, and them disappearing.
Oh - I guess I might be saying that google groups censors my posts.