> On 19 Aug 2018, at 21:39, Brent Meeker <meeke...@verizon.net> 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 everything-list+unsubscr...@googlegroups.com. > To post to this group, send email to everything-list@googlegroups.com. > 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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
