Contextuality, Coherences, and Quantum Cheshire Cats

Autor:	Hance, Jonte R., Ji, Ming, Hofmann, Holger F.
Rok vydání:	2023
Předmět:	Quantum Physics Physics - History and Philosophy of Physics
Zdroj:	New J. Phys. 25 113028 (2023)
Druh dokumentu:	Working Paper
DOI:	10.1088/1367-2630/ad0bd4
Popis:	We analyse the quantum Cheshire cat using contextuality theory, to see if this can tell us anything about how best to interpret this paradox. We show that this scenario can be analysed using the relation between three different measurements, which seem to result in a logical contradiction. We discuss how this contextual behaviour links to weak values, and coherences between prohibited states. Rather than showing a property of the particle is disembodied, the quantum Cheshire cat instead demonstrates the effects of these coherences, which are typically found in pre- and postselected systems. Comment: 11 pages, 3 figures. Accepted in New J. Phys., matches accepted version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2307.06583 Zobrazit plný text záznamu View this record from Arxiv