No Relation for Wigner’s Friend

We argue that Wigner’s friend thought experiment does not support observer dependence of quantum states. An analysis in terms of history vectors suggests that quantum collapse is to be understood as collapse of histories rather than collapse of states.

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Bibliographische Detailangaben
Veröffentlicht in:	International journal of theoretical physics 2021-06, Vol.60 (6), p.2084-2089
1. Verfasser:	Castellani, Leonardo
Format:	Artikel
Sprache:	eng
Schlagworte:	Elementary Particles Mathematical and Computational Physics Physics Physics and Astronomy Quantum Field Theory Quantum Physics Theoretical
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	We argue that Wigner’s friend thought experiment does not support observer dependence of quantum states. An analysis in terms of history vectors suggests that quantum collapse is to be understood as collapse of histories rather than collapse of states.
ISSN:	0020-7748 1572-9575
DOI:	10.1007/s10773-021-04826-9