On 8/2/2019 12:53 PM, Jason Resch wrote:
On Fri, Aug 2, 2019 at 1:25 PM 'Brent Meeker' via Everything List
<[email protected]
<mailto:[email protected]>> wrote:
On 8/2/2019 10:42 AM, Jason Resch wrote:
Quantum computers work by interference of quits, and
such interference can only take place in one world --
different worlds are orthogonal. The fact that one
can analyse a quantum computer in a particular basis
which can be represented as a series of parallel
computations does not mean that this is actually what
happens. Heuristic constructs seldom correspond to
reality.
None of this comes anywhere close to addressing my question.
Well, you have either not understood the question, or my
answer to it.
I asked where those 10^1000 intermediate computation states are
realized, and your reply was a basic description of how quantum
computers use qubits and interference. You said this all takes
place in one world, but the total information content and
computational capacity of the observable universe about 800
orders of magnitude less than 10^1000.
You then added a sentence that suggested the intermediate
computational states perhaps don't exist, but then how does the
correct answer get into the output bits when we read it?
David Deutsch said he has never seen a sensible answer to the
question of how quantum computers work from the context of any
single-universe interpretation. Do you think your answer would
satisfy him?
All those "intermediate computation states" are so "numerous"
because the state is being expressed as a superposition of qubit
basis states. From another viewpoint the state is just a single
ray in Hilbert space that happens to not be orthogonal to any of
those bases
So in your view, are they real?
What "they"? There's only a single state. It's like saying there are
infinitely many tones in a square wave...just because you represented it
as a Fourier series. The are 2^1e4 potential measurement results,
depending on what you choose to measure...but that's true in the
classical case too.
Brent
Jason
--
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 [email protected]
<mailto:[email protected]>.
To view this discussion on the web visit
https://groups.google.com/d/msgid/everything-list/CA%2BBCJUj10F0krHaz%3DpA35sqmgGkrOJtUJ9sfz7YvB7WsoZHB0g%40mail.gmail.com
<https://groups.google.com/d/msgid/everything-list/CA%2BBCJUj10F0krHaz%3DpA35sqmgGkrOJtUJ9sfz7YvB7WsoZHB0g%40mail.gmail.com?utm_medium=email&utm_source=footer>.
--
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 [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/everything-list/05326023-95e6-55ec-56c3-83ef04f29ef9%40verizon.net.
