Causality between preparation and registration processes in relativistic quantum theory

authored by

Holger Neumann, Reinhard F. Werner

Abstract

A causality postulate is considered which is based on the concept of systems that are prepared in some finite region of space-time and recorded in some other region. If these regions are spacelike separated, the recording apparatus should react as if no preparing apparatus were presented, i.e. it should respond with at most some vacuum rate. The causality postulate is mathematically formulated within the framework of statistical theories. The connections with algebraic field theory are discussed and the relation between causality and spectral conditions is studied. General methods for constructing systems satisfying the causality postulate are given and applied in serveral examples.

Organisation(s)

Institute of Theoretical Physics

External Organisation(s)

Philipps-Universität Marburg

Type

Article

Journal

Internat. J. Theoret. Phys.

Volume

22

Pages

781-802

No. of pages

22

Publication date

1983

Publication status

Published

Peer reviewed

Yes

Electronic version(s)

https://doi.org/10.1007/BF02114662 (Access: Unknown)