On Tuesday, August 6, 2019 at 1:00:23 PM UTC-5, Brent wrote:
>
>
>
> On 8/6/2019 6:38 AM, Bruno Marchal wrote:
>
> If the QC does its task effectively, the output basis qbits will be put
> into definite states,
>
>
> Relatively to the observer, but in the global state, the observer will
> inherit the superposition state, by linearity of the tensor products and of
> the evolution.
>
>
> In something like Shor's algorithm there is only one final state with
> non-vanishing probability. Yet this is the kind of algorithm that Deutsch
> cites as proving there must be many worlds.
>
> Brent
>
That there is a multiplicity of *somethings*
https://en.wikipedia.org/wiki/Multiple_histories
is the basis for all semantics of quantum computing (by computer
scientists) that I have ever seen.
@philipthrift
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