On 03 Oct 2013, at 02:19, LizR wrote:
On 3 October 2013 13:15, meekerdb <[email protected]> wrote:
Interestingly it appears that most coin tosses may be quantum
random, arXiv:1212.0953v1 [gr-qc]
(snip)
I say "most" because I know that magicians train themselves to be
able to flip a coin and catch it consistently.
Interesting. I think there's a slight bias (in non-magicians)
towards the coin coming down one way or the other - either the same
as it started or the opposite, I can't remember which (There could
be an ig-nobel in finding out for sure...)
I gave this as exercise to my students some years ago (and I asked
that to the FOR list too, but got no answer): how much have you to
shake a box with a dice, so that the universe get into a superposition
with the six outcomes.
Most quantitative rough computations shows that you don't have to
shake it much, indeed. The quantum uncertain adds very quickly. Now, I
would have said it is still take some time, and the fact that magician
can trained themselves to get the wanted coin face makes me doubt that
a simple throw can be enough (I have not yet find the time to look at
the paper, busy days ...).
Bruno
http://iridia.ulb.ac.be/~marchal/
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