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A classical field theory comeback?: The classical field viewpoint on triparticle entanglement
Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM. (mathematical modeling)ORCID-id: 0000-0002-9857-0938
2011 (engelsk)Inngår i: Physica scripta. T, ISSN 0281-1847, nr T143, artikkel-id 014013Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We present the fundamentals of a prequantum model with hidden variables of classical field type—prequantum classical statistical field theory (PCSFT). In some sense, this is the comeback of classical field theory, but with an extension to massive particles. All quantum averages (including correlations of entangled systems) can be represented as classical field averages and correlations. In the literature, entanglement of biparticle systems (in particular, biphotons) has been represented in the PCSFT framework. In this paper, we consider triparticle entanglement. It is well known that in conventional quantum mechanics, the cases of biparticle and triparticle entanglement are quite different. Roughly speaking, triparticle entanglement is not reducible to biparticle entanglement. The PCSFT approach to entanglement (as a correlation of classical signals) reflects this quantum situation. The PCSFT representations of correlations in biparticle and triparticle systems differ essentially. In particular, from the mathematical viewpoint the latter is fundamentally more complicated than the former.

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2011. nr T143, artikkel-id 014013
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URN: urn:nbn:se:lnu:diva-16624DOI: 10.1088/0031-8949/2011/T143/014013Scopus ID: 2-s2.0-79953182319OAI: oai:DiVA.org:lnu-16624DiVA: diva2:473657
Tilgjengelig fra: 2012-01-06 Laget: 2012-01-06 Sist oppdatert: 2017-12-08bibliografisk kontrollert

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