Causality between preparation and registration processes in relativistic quantum theory

Neumann, Holger; Werner, Reinhard

doi:10.1007/bf02114662

Cited by 14 publications

(8 citation statements)

References 11 publications

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“…Nonetheless, when concerned with independence of subsystems, one is clearly interested in the joint measurability of all pairs of observables of the subsystems, and this is equivalent to A ⊂ B ′ (see e.g. [54,64]).…”

Section: Some Formulations Of Subsystem Independencementioning

confidence: 99%

Subsystems and independence in relativistic microscopic physics

Summers

2009

Studies in History and Philosophy of Science Part B: Studies in

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Section: Some Formulations Of Subsystem Independencementioning

confidence: 99%

Subsystems and independence in relativistic microscopic physics

Summers

2009

Studies in History and Philosophy of Science Part B: Studies in

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“…This discomfort is dissolved by noting that an "observable" A does not represent a unique measuring apparatus in some fixed laboratory, but rather represents an equivalence class of such apparata (cf. Neumann and Werner, 1983). Consider two such idealized apparata X, Y such that φ(X) = φ(Y ) for all (idealized) states φ admitted in the theory (the set of such states contains as a subset-at least in principle-all states preparable in the laboratory).…”

Section: Final Remarksmentioning

confidence: 99%

Remarks on Causality in Relativistic Quantum Field Theory

Rédei

Summers

2007

Int J Theor Phys

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It is shown that the correlations predicted by relativistic quantum field theory in locally normal states between projections in local von Neumann algebras A(V 1 ), A(V 2 ) associated with spacelike separated spacetime regions V 1 , V 2 have a (Reichenbachian) common cause located in the union of the backward light cones of V 1 and V 2 . Further comments on causality and independence in quantum field theory are made.

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“…[16]). Consider two such idealized apparata X, Y such that φ(X) = φ(Y ) for all (idealized) states φ admitted in the theory (the set of such states contains as a subset -at least in principle -all states preparable in the laboratory).…”

Section: Final Remarksmentioning

confidence: 99%