On 11/17/2017 6:41 PM, agrayson2...@gmail.com wrote:
*Not sure of the distinction between "an operator" and a "local
operator" in the context of the singlet state. *
A local operator would be one that interacts with only one of the two
particles, i.e. it's located near Alice or near Bob, but not both.
*Can you write the basis and possibly the operator in which the
singlet state, which I think is pure, is an eigenfunction? AG *
Maybe Bruce can do this more elegantly, but I think it would be,
Where A and B refere to Alice and Bob and the subscript indicates they
detected the particle as spin up or down relative to the SG set at angle
phi_i. And the sum is over all possible angles. So the operator should
return 1 if the angular momentum is conserved (it's a singlet state) and
0 otherwise, but doesn't actually tell you what the spin direction was.
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.
