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Article Dans Une Revue Comptes Rendus. Physique Année : 2021

The outcomes of measurements in the de Broglie–Bohm theory

Résumé

Within the de Broglie-Bohm (dBB) theory, the measurement process and the determination of its outcome are usually discussed in terms of the effect of the Bohmian positions of the measured system S. %} This article shows that the Bohmian positions associated with the measurement apparatus M can actually play a crucial role in the determination of the result of measurement. Indeed, in many cases, the result is practically independent of the initial value of a Bohmian position associated with S, and determined only by those of M. The measurement then does not reveal the value of any pre-existing variable attached to S, but just the initial state of the measurement apparatus. Quantum contextuality then appears with particular clarity as a consequence of the dBB dynamics for entangled systems.
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Dates et versions

hal-03343510 , version 1 (08-12-2023)

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Geneviève Tastevin, Franck Laloë. The outcomes of measurements in the de Broglie–Bohm theory. Comptes Rendus. Physique, 2021, 22 (1), pp.99-116. ⟨10.5802/crphys.81⟩. ⟨hal-03343510⟩
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