English

Remarks on Causality in Relativistic Quantum Field Theory

Quantum Physics 2008-11-26 v2

Abstract

It is shown that the correlations predicted by relativistic quantum field theory in locally normal states between projections in local von Neumann algebras \cA(V1),\cA(V2)\cA(V_1),\cA(V_2) associated with spacelike separated spacetime regions V1,V2V_1,V_2 have a (Reichenbachian) common cause located in the union of the backward light cones of V1V_1 and V2V_2. Further comments on causality and independence in quantum field theory are made.

Keywords

Cite

@article{arxiv.quant-ph/0302115,
  title  = {Remarks on Causality in Relativistic Quantum Field Theory},
  author = {Miklos Redei and Stephen J. Summers},
  journal= {arXiv preprint arXiv:quant-ph/0302115},
  year   = {2008}
}

Comments

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

R2 v1 2026-07-22T19:38:19.499Z