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Quantum Physics

Title: Entanglement and Relativity

Abstract: In this paper we survey, in an elementary fashion, some of the questions that arise when one considers how entanglement and relativity are related via the notion of non-locality. We begin by reviewing the role of entangled states in Bell inequality violation and question whether the associated notions of non-locality lead to problems with relativity. The use of entanglement and wavefunction collapse in Einstein's famous incompleteness argument is then considered, before we go on to see how the issue of non-locality is transformed if one considers quantum mechanics without collapse to be a complete theory, as in the Everett interpretation. The opportunity is taken to consider whether teleportation and dense coding might constitute a source of non-locality within the Everett interpretation.
Comments: 18 pages, uses amsmath, amsfonts, natbib and fancyheadings packages. Typos corrected and additional reference
Subjects: Quantum Physics (quant-ph)
Journal reference: `Understanding Physical Knowledge' eds. R. Lupacchini and V. Fano, 2002; Department of Philosophy, University of Bologna, CLUEB
Cite as: arXiv:quant-ph/0212140
  (or arXiv:quant-ph/0212140v2 for this version)

Submission history

From: Christopher Gordon Timpson [view email]
[v1] Tue, 24 Dec 2002 12:16:33 GMT (24kb)
[v2] Fri, 4 Apr 2003 09:52:27 GMT (23kb)