Quantum Processing: Possible or Impossible

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I feel that, yes, a computer could be developed that processes multiple information at the same time, but not in this fashion.

What's the logical basis of your rationale for this feeling?

I believe that the human brain is a biological quantum computer. Just a theory.

Just why would you believe that?

For what it's worth, it's hardly qualifies as a theory. Maybe a guess.

I read that it is already possible to build a quantum computer that is able to sum 1+1. I think it had two qubits, but not sure. Is it now an engineering problem? There are already quantum algorithms.

True. I'm not sure how plausible this is, but it's an interesting idea.http://en.wikipedia.org/wiki/Quantum_mind

There is not an iota of empirical evidence that supports the supposition.

Poor choice of words on my part. By "theory" I meant "an idea I thought of while watching a science program". Turns out I'm not even the only one to come to that conclusion. There are others who believe in the "Quantum Mind"

The brain may exists in multiple states, but thoughts and brain activity can only exist in one observable state at any given moment. Is there a parallel version of me writing this comment, but using slightly different words, or even saying something else entirely? Possibly, but I would never know about it.

The brain's activity involves chemistry. An applied version of Newtonian physics.

Not really—in a Newtonian universe, electrons in atoms would radiate away their orbital energy till they fell into the nucleus, and all the ordinary matter would end up made entirely of neutrons, like that in neutron stars.

Well, yeah. That goes without saying.

The brain is no more or less "quantum" than the desk in front of me or the chair I am sitting on.

Since Newton died before we had an understanding or even an inkling of atomic structure... The Newtonian Universe... is this one...

For the record... If the statement were accurate... once the atoms reach absolute zero (which is what radiating all their energy away implies)... The atoms, according to modern theory, would not collapse...

At absolute zero, even the energy holding the atoms together is gone... Effectively, they would break down into their components of quark soup and just... evaporate...

Quantum computing is certainly possible in principle, though the engineering hurdles are massive. The computer must be completely shielded from the environment, so things don't start to decohere when they shouldn't.

And in recent years they've actually built small, working, primitive quantum computers. Last I heard, the most complex calculation done by a quantum computer was 5*3=15 (though this could have changed; I think that was around 5 years ago).

D Wave

D-wave claims to be able to construct a 128Qbit computer. I haven't read everything about them, so I can't tell you what the catch is. 128Qbits is a lot.

Believed when demonstrated and corroborated by qualified people.

ruveyn

cra.org

Harvard Researchers were able to use a D-wave computer to solve a protein folding problem.

D-wave uses quantum annealing, the explanation goes way over my head, but it's given as the reason for how they made it to 128Qbits.