Remarks on Causality in Relativistic Quantum Field Theory

Details Remarks on Causality in Relativistic Quantum Field Theory Remarks on Causality in Relativistic Quantum Field Theory

2003-02-14

arxiv.org/abs/quant-ph/0302115v2

Erratum-ibid.46:2053-2062,2007

Physics

Quantum Physics

10 pages, Latex, Quantum Structures 2002 Conference Proceedings submission. Minor revision of the order of definitions on p. 3

Scientific paper

10.1007/s10773-006-9299-5

It is shown that the correlations predicted by relativistic quantum field theory in locally normal states between projections in local von Neumann algebras $\cA(V_1),\cA(V_2)$ 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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