On 19 Mar 2013, at 15:27, Evgenii Rudnyi wrote:
On 19.03.2013 12:39 Bruno Marchal said the following:
On 19 Mar 2013, at 10:48, Evgenii Rudnyi wrote:
On 18.03.2013 19:39 Bruno Marchal said the following:
...
1) show me a human as good as a quantum computer for finding a
needle in a haystack.
Could you show me a quantum computer that can do that? I guess that
it exist only in dreams of theoreticians (on in that part of
Platonia that the humankind cannot access).
That's an argument of the kind "only bird can fly". I was alluding to
a well now ability of QC. And to pretend that a brain/mind can do
quantum computing would endow a brain/mind with this abilities.
Grover L.K. Qunatum Mechanics helps in searching for a needle in an
haystack. Physical Review Letters, 78: 325-328, 1997a.
Quant-phys/9605043.
The fact that QC does not yet exist does not invalidate the
argument.
In my view, provided that there is no experimental proof, we remain
in a realm of a metaphysical discussion. Is this what you mean by
the argument?
I think that you are confusing theoretical and metaphysical.
I would avoid the term "experimental proof" as this does not make
sense with the notion of proof most commonly referred in this list
(valid theoretical deduction)
Also, there are plenty of experimental confirmations of quantum
computations. What does not yet exist is a general purpose quantum
computer, but the reason why are obvious: it *is* technically
challenging. Yet, since the work on quantum error correction, no one
doubt in the field that quantum computer will appear. May be in ten
years, may be in 100 years. I have already assisted to quite
impressive experience is quantum data encryption and recovery. The
number 15 has already be factorized through a quantum algorithm
(Shor), etc.
But again, that is beside the point I made. I was answering a post by
Roger Clough which speculates about the fact that the human brain is a
quantum computer. You should address your post to him, as this is
rather speculative. Not only there are rather good argument why this
is doubtful, but there are no evidence for this at all.
Bruno
Evgenii
--
You received this message because you are subscribed to the Google
Groups "Everything List" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to everything-list+unsubscr...@googlegroups.com.
To post to this group, send email to everything-list@googlegroups.com.
Visit this group at http://groups.google.com/group/everything-list?hl=en
.
For more options, visit https://groups.google.com/groups/opt_out.
http://iridia.ulb.ac.be/~marchal/
--
You received this message because you are subscribed to the Google Groups
"Everything List" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to everything-list+unsubscr...@googlegroups.com.
To post to this group, send email to everything-list@googlegroups.com.
Visit this group at http://groups.google.com/group/everything-list?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.
