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The extended Bloch Representation of Entanglement and Measurement in Quantum Mechanics

Tijdschriftbijdrage - Tijdschriftartikel

The quantum formalism can be completed by assuming that density operators also represent genuine states. An ‘extended Bloch representation’ (EBR) then results, in which not only the states but also the measurement-interactions can be described. Consequently, the Born rule can be obtained as an expression that quantifies the lack of knowledge about the measurement-interaction that is each time actualized, during a measurement. Entanglement can also be consistently described in the EBR, as it remains compatible with the principle according to which a composite entity exists only if its components also exist, and therefore are in well-defined states.

Tijdschrift: International Journal of Theoretical Physics
ISSN: 0020-7748
Issue: 12
Volume: 56
Pagina's: 3727-3739
Jaar van publicatie:2017
Trefwoorden:Bloch sphere, Entanglement, Extended Bloch representation, Hidden-measurements, Hidden-variables, Measurement problem, SU(N)
CSS-citation score:1