On Wed, Dec 12, 2012 at 5:15 PM, meekerdb <[email protected]> wrote:
> On 12/12/2012 9:25 AM, John Clark wrote: > > On Tue, Dec 11, 2012 meekerdb <[email protected]> wrote: > > On 12/11/2012 9:31 AM, Jason Resch wrote: >> >> >>> Everett's QM is not a theory; it's just an interpretations. >>> >> >> >> Not quite. Deutsch's proposed experiment with reversible >> computation and an AI yields different results for the CI and MWI, thus >> they are theories which can be tested and differentiated. >> >> > Except his proposed experiment relies on a hypothetical quantum >> computer that is conscious. >> > > Yes but Deutsch argues, convincingly I thought, that the reason it's so > difficult to test is not the Many World's theory's fault, the reason is > that the conventional view says that conscious observers obey different > laws of physics, Many Worlds says they do not, so to test who's right we > need a mind that uses quantum properties. > > In Deutsch's experiment to prove or disprove the existence of many worlds > other than this one a conscious quantum computer shoots electrons at a > metal plate that has 2 small slits in it. It does this one at a time. The > quantum computer has detectors near each slit so it knows which slit the > various electrons went through. The quantum mind now signs a document > saying that it has observed each and every electron and knows what slit > each electron went through. It is very important that the document does not > say which slit the electrons went through, it only says that they went > through one slit only, and the mind has knowledge of which one. Now the > mind uses quantum erasure to completely destroy the memory of what slits > the electrons went through. But all other memories and the document remains > undamaged. > > > But why should I think this is possible? I'd like to see the actual > mechanism or Hamiltonian that allows this. > > > And then the electrons continue on their way and hit the photographic > plate. Now develop the photographic plate and look at it, if you see > interference bands then the many world interpretation is correct. > > > No, it only means the 'consciousness collapses the wave-function' theory > is incorrect. It doesn't follow that MWI is correct. > > If observing a definite result doesn't collapse the wave function then what does? I think the experiment is meant to show collapse does not happen. And if there is no collapse then you have the MWI. Jason -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.
