Entanglement and open systems in algebraic quantum field theory

Entanglement has long been the subject of discussion by philosophers of quantum theory, and has recently come to play an essential role for physicists in their development of quantum information theory. In this paper we show how the formalism of algebraic quantum field theory (AQFT) provides a rigorous framework within which to analyse entanglement in the context of a fully relativistic formulation of quantum theory. What emerges from the analysis are new practical and theoretical limitations on an experimenter's ability to perform operations on a field in one spacetime region that can disentangle its state from the state of the field in other spacelike-separated regions. These limitations show just how deeply entrenched entanglement is in relativistic quantum field theory, and yield a fresh perspective on the ways in which the theory differs conceptually from both standard non-relativistic quantum theory and classical relativistic field theory.
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DOI 10.1016/S1355-2198(00)00033-2
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References found in this work BETA
Michael Redhead (1995). More Ado About Nothing. Foundations of Physics 25 (1):123-137.

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Citations of this work BETA
Miklós Rédei (2014). A Categorial Approach to Relativistic Locality. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 48:137-146.
John Earman & Giovanni Valente (2014). Relativistic Causality in Algebraic Quantum Field Theory. International Studies in the Philosophy of Science 28 (1):1-48.
Vincent Lam & Michael Esfeld (2012). The Structural Metaphysics of Quantum Theory and General Relativity. Journal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 43 (2):243-258.
Giovanni Valente (2013). Local Disentanglement in Relativistic Quantum Field Theory. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (4):424-432.
Stephen J. Summers (2009). Subsystems and Independence in Relativistic Microscopic Physics. Studies in History and Philosophy of Science Part B 40 (2):133-141.

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