On 10 March 2014 15:09, meekerdb <[email protected]> wrote: > Decoherence is what I described above. It's tracing over the environment > variables, having selected what counts as environment and what as > instrument/observer, in order to get the reduced density matrix and then > saying "Obviously we should measure/observe one of these diagonal values > with the proportional probability." So when you get right down to how the > math goes it's pretty close to choosing the Heisenberg cut - except you > then say "and my other selves will measure/observe the other diagonal > values" which soothes one's angst over randomness. >
Have I been misinformed? I thought decoherence was supposed to be a physical mechanism which reduced the off-diagonal elements to virtual nonexistence? -- 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 http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
