> On 7 Aug 2019, at 00:29, 'Brent Meeker' via Everything List > <[email protected]> wrote: > > > > On 8/6/2019 11:25 AM, Philip Thrift wrote: >> >> >> 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 >> <https://en.wikipedia.org/wiki/Multiple_histories> >> >> is the basis for all semantics of quantum computing (by computer scientists) >> that I have ever seen. > > Same for classical computation...there are lots of states or functions. Did > anyone think there had to be multiple worlds for the computer to work?
They inherit the many computations in arithmetic to make some sense of the counterfactual. Good insight! Yes, even classical computation entails the many computations in the background. A priori it is different from the interfering one in nature, but then we recover the one in nature by taking into account nuance on the selves imposed by incompleteness. Bruno > > Brent > > -- > 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/be8281da-089d-efc9-3a6f-87f092a5dd4d%40verizon.net > > <https://groups.google.com/d/msgid/everything-list/be8281da-089d-efc9-3a6f-87f092a5dd4d%40verizon.net?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/893AA3FE-38A4-4A3D-B4BE-217E02A5F509%40ulb.ac.be.
