Re: True random numbers wanted

From: Hartmut (hartmut@ccc-hanau.de)
Date: Sun Sep 22 2002 - 12:11:26 MDT


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On Friday 20 September 2002 10:03, gts wrote:
> For example, let us presume that due to bias in the device, it tends to
> give determinations of long-short more so than short-long. This would be
> a problem because QM predicts an inherent equality of the probabilities
> of long-short vs short-long measurements. However by reversing the rule
> on each successive measurement as to whether long-short measurements
> should equal 1 or 0, the supposed bias is tilted just as much in favor
> of 1's as it is to 0's, such that there is no actual bias in the final
> recorded sequence.

but random is not only defined over an equal outcome of 1's and 0's. You need
also to take into account all sequences like 00, 01 and so on (sequences of
three bit ...).
So if there exist more long-short outcomes, then you will, because of the
determined changing of the rule, get more sequences of 01 or 10 than 00 or
11. But for each of the four sequences should be the probability 1/4.

Bye
Hartmut

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