On Tuesday, May 1, 2018 at 6:57:14 AM UTC, scerir wrote: > > *AG: 'I suppose people will appeal to entanglement and decoherence to try > to make sense of how a measurement occurs. Nevertheless, I tend strongly > to the view that the theory is inherently irreversible; that is, TIME > IRREVERSIBLE IN PRINCIPLE If so, it implies the arrow of time has its > origin at the quantum level.'* > > #### Maybe. > > But ... since we say that there is non-separability between > (position/momentum or time/energy) entangled quantum states, can we also > say there is quantum non-separability not just *in space* (i.e. correlation > between space-like separated events) but also *in time* (there is no > *causal* ordering)? > > Are there Bell's inequalities for correlations *in time*? s. > > https://arxiv.org/abs/1712.06884 > > https://arxiv.org/abs/1708.00248 >
*If two events are space-like separated, I think it's correct to say there is no causal ordering. However, when analyzing time reversal for measurements -- whether or not it exists in QM -- aren't we dealing with time-like ordering in the laboratory wherein the "first" measurement occurred? AG* -- 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.
