> On 19 Aug 2018, at 21:39, Brent Meeker <[email protected]> wrote: > > > > On 8/19/2018 3:37 AM, Bruno Marchal wrote: >>> So the "many superpositions" that you posit are entirely arbitrary, pulled >>> out of the air without any justification. >> >> If she measure u, Bob get d. But is she measure u’, Bob get d’ (with >> certainly, if they have decided to measure in the same base u’d’ before). To >> account for that, obviously maintaining locality, we must take into >> account the initial uncertainty, due to psi = (|u>|d> - |d>|u>)/sqrt(2) = >> (|u'>|d'> - |d'>|u'>)/sqrt(2). > > But that is a classical uncertainty as to which detect angle Alice chooses > and you have muddled the picture by leaving the detector and it's angle out > of the equation, and writing only the particle spin part down.
Adding Alice will change nothing, unless from her point of view if she “irreversibly” memorise her outcome; then the symmetry is locally broken, but I am not sure for the “universal wave” describing Alice + Bob + the particles. There is no mixture states there. 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]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. -- 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
