On the spin dependence of detection times and the nonmeasurability of arrival times

Autor:	Sheldon Goldstein, Roderich Tumulka, Nino Zanghì
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	Medicine Science
Zdroj:	Scientific Reports, Vol 14, Iss 1, Pp 1-3 (2024)
Druh dokumentu:	article
ISSN:	2045-2322
DOI:	10.1038/s41598-024-53777-8
Popis:	Abstract According to a well-known principle of quantum physics, the statistics of the outcomes of any quantum experiment are governed by a Positive-Operator-Valued Measure (POVM). In particular, for experiments designed to measure a specific physical quantity, like the time of a particle’s first arrival at a surface, this principle establishes that if the probability distribution of that quantity does not arise from a POVM, no such experiment exists. Such is the case with the arrival time distributions proposed by Das and Dürr, due to the nature of their spin dependence.
Databáze:	Directory of Open Access Journals
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