Quantum Physics


Conditions for Entanglement

Authors: Dieter Gernert

Whereas entanglement and nonlocality belong to the fundamental findings of quantum theory, possible extensions to macroscopic systems outside the quantum laboratory are scarcely studied. This paper analyses conditions for entanglement to occur on a macrophysical level. An empirical basis is given by historic episodes and modern quantitative data. Theoretical understanding can start from the concept of perspective notions; the crucial new term is "common prearranged context", which characterizes the preparation to be made in advance (or naturally given conditions) in order to enable entanglement. A mathematical formalization is possible and gives some insight about how to handle perspective notions.

Comments: 6 pages. Journal reference: Frontier Perspectives, vol. 14, no. 2, 8-13 (2005)

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[v1] 20 Aug 2009

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