Re: R: Re: R: Re: Non-locality and MWI (literature)

On 11/05/2016 2:31 am, Bruno Marchal wrote: The question is: are the probabilities, or the indeterminacies, and the non locality, phenomenological (1p) or factual (ontological, real, 3p)? QM+collapse admit factual indeterminacies (God plays dice, and there are action at a distance,

Re: Non-locality and MWI

On 11-05-2016 00:39, Bruce Kellett wrote: On 11/05/2016 1:54 am, smitra wrote: On 10-05-2016 06:04, Bruce Kellett wrote: Non-locality was not the issue with this example of the cat in the box. All I was seeking to establish was that the observer maybe on definite branches of the wave function

Re: Non-locality and MWI

On 11/05/2016 1:54 am, smitra wrote: On 10-05-2016 06:04, Bruce Kellett wrote: Non-locality was not the issue with this example of the cat in the box. All I was seeking to establish was that the observer maybe on definite branches of the wave function (i.e., have been "split") without knowing

R: Re: R: Re: R: Re: R: Re: Non-locality and MWI (literature)

. I think we all agree that QM-with-collapse entails a violation of Locality. The debate was for the case of the non-single value QM, that is QM-without-collapse, where all branches of the wave are kept "alive". Bruno As somebody wrote "Algebraic nonseparability entails geometric nonlocality;

Re: R: Re: R: Re: R: Re: Non-locality and MWI (literature)

On 10 May 2016, at 19:06, 'scerir' via Everything List wrote: Messaggio originale Da: Bruno Marchal Data: 10/05/2016 18.31 A: Ogg: Re: R: Re: R: Re: Non-locality and MWI (literature) On 10 May 2016, at 15:37, 'scerir' via

Re: R: Re: R: Re: Non-locality and MWI (literature)

On 10 May 2016, at 18:36, 'scerir' via Everything List wrote: scerir wrote: If A and B are two wings of a typical Bell apparatus, i the observable to be measured in A and x its possible value, j is the observable to be measured in B and y its possible value, and if Lambda are hidden

R: Re: R: Re: R: Re: Non-locality and MWI (literature)

Messaggio originale Da: Bruno Marchal Data: 10/05/2016 18.31 A: Ogg: Re: R: Re: R: Re: Non-locality and MWI (literature) On 10 May 2016, at 15:37, 'scerir' via Everything List wrote: Thanks Scerir, but yet again, this

R: Re: R: Re: Non-locality and MWI (literature)

scerir wrote: If A and B are two wings of a typical Bell apparatus, i the observable to be measured in A and x its possible value, j is the observable to be measured in B and y its possible value, and if Lambda are hidden variables, we could write Locality Condition p_A,Lambda (x|i,j) =

Re: R: Re: R: Re: Non-locality and MWI (literature)

On 10 May 2016, at 15:37, 'scerir' via Everything List wrote: Thanks Scerir, but yet again, this paper get the same conclusion as mine (and most people here). With the MWI, non-locality does not imply action-at-a distance. (d'Espagnat would call it non- separability). What I look for

Re: Non-locality and MWI

On 10-05-2016 06:04, Bruce Kellett wrote: Non-locality was not the issue with this example of the cat in the box. All I was seeking to establish was that the observer maybe on definite branches of the wave function (i.e., have been "split") without knowing about it. The wave function here is

R: Re: R: Re: Non-locality and MWI (literature)

Thanks Scerir, but yet again, this paper get the same conclusion as mine (and most people here). With the MWI, non-locality does not imply action-at-a distance. (d'Espagnat would call it non-separability). What I look for would be a paper which would show that in the MWI there are

Re: R: Re: Non-locality and MWI (literature)

On 10/05/2016 10:31 pm, Bruno Marchal wrote: On 10 May 2016, at 09:00, 'scerir' via Everything List wrote: Bruno (I suppose) wrote: But in the MWI, some work needs to be done (at least) to convince me. I don't even find a paper on the subject, only paper which shows that MWI

Re: R: Re: Non-locality and MWI (literature)

On 10 May 2016, at 09:00, 'scerir' via Everything List wrote: Bruno (I suppose) wrote: But in the MWI, some work needs to be done (at least) to convince me. I don't even find a paper on the subject, only paper which shows that MWI is local (some more rigorous than other). Do you have a

R: Re: R: Re: Non-locality and MWI (literature)

### W. Myrvold wrote something here http://philsci-archive.pitt.edu/11654/ (see ch. 0.8) It seems that he is saying that 'action-at-a-distance' is something that would violate the 'no-signalling theorem'

Re: R: Re: Non-locality and MWI (literature)

On 10/05/2016 5:00 pm, 'scerir' via Everything List wrote: Bruno (I suppose) wrote: But in the MWI, some work needs to be done (at least) to convince me. I don't even find a paper on the subject, only paper which shows that MWI is local (some more rigorous than other). Do you

R: Re: Non-locality and MWI (literature)

Bruno (I suppose) wrote: But in the MWI, some work needs to be done (at least) to convince me. I don't even find a paper on the subject, only paper which shows that MWI is local (some more rigorous than other). Do you have a reference of a paper showing that Bell's