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Zurek has proposed a http://lanl.arxiv.org/abs/1105.4810v1" (Phys.Rev.Lett.106:250402,2011) based on these assumptions:
(i) States “live” in Hilbert spaces
(ii) Evolutions (including measurements) are unitary.
(o) Hilbert spaces of composite systems have tensor structure.
(iii) Immediate repetition of a measurement yields the same outcome.
(z) "Envariance also relies on locality of quantum dynamics (i.e., the fact that a unitary operation here cannot change a state there)"
Is it correct and satisfactory? What is the BM take on this?
(i) States “live” in Hilbert spaces
(ii) Evolutions (including measurements) are unitary.
(o) Hilbert spaces of composite systems have tensor structure.
(iii) Immediate repetition of a measurement yields the same outcome.
(z) "Envariance also relies on locality of quantum dynamics (i.e., the fact that a unitary operation here cannot change a state there)"
Is it correct and satisfactory? What is the BM take on this?
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