Artykuł w czasopiśmie
Licencja
CC-BY - Uznanie autorstwaEntanglement and discernibility of identical particles
| dc.abstract.en | This article follows an unorthodox approach to the individuation of quantum particles of the same type. According to this approach, individuation of the components of a composite system of identical particles is done not with the help of unphysical labels (indices) but physically meaningful projection operators. This unorthodox conception requires a modification of the standard notion of entanglement, in order to exclude states whose non-factorizability arises merely from the (anti-)symmetrization of a product state. I will report several facts regarding the connections of the modified concept of entanglement with the issue of discernibility. I will also discuss recent experiments involving measurement-induced entanglement, and I will point out that they do not threaten the cogency of the new concept of entanglement. The statistical correlations observed in these experiments are explainable not by the entanglement of the initial state but by the creation of a new, genuinely entangled state by means of a pre-measurement selection. Finally, I will identify and discuss a genuine difference between non-entangled but non-factorizable states of identical particles and ordinary product states, which is that the former but not the latter admit an infinity of alternative and incompatible individuations by single-particle properties. This phenomenon can be accounted for using the concept of emergent particles proposed by Dennis Dieks. |
| dc.affiliation | Uniwersytet Warszawski |
| dc.affiliation.department | Wydział Filozofii |
| dc.affiliation.other | Zakład Filozofii Nauki |
| dc.contributor.author | Bigaj, Tomasz |
| dc.date.accessioned | 2024-05-22T11:20:17Z |
| dc.date.available | 2024-05-22T11:20:17Z |
| dc.date.issued | 2023-04-19 |
| dc.description.number | 381 |
| dc.description.version | final_author |
| dc.identifier.bibliographicCitation | Bigaj Tomasz 2023Entanglement and discernibility of identical particlesPhil. Trans. R. Soc. A.38120220105 http://doi.org/10.1098/rsta.2022.0105 |
| dc.identifier.doi | 10.1098/rsta.2022.0105 |
| dc.identifier.eissn | 1471-2962 |
| dc.identifier.issn | 1364-503X |
| dc.identifier.orcid | 0000-0002-8121-9789 |
| dc.identifier.uri | https://repozytorium.uw.edu.pl//handle/item/160373 |
| dc.language | en |
| dc.pbn.affiliation | philosophy |
| dc.relation.ispartof | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
| dc.relation.pages | 20220105 |
| dc.rights | CC-BY |
| dc.rights.weblink | https://creativecommons.org/licenses/by/4.0/deed.pl |
| dc.sciencecloud | send |
| dc.share.type | OPEN_REPOSITORY |
| dc.subject.en | entanglement |
| dc.subject.en | identical particles |
| dc.subject.en | symmetrization |
| dc.subject.en | discernibility |
| dc.subject.en | emergence |
| dc.title | Entanglement and discernibility of identical particles |
| dc.type | JournalArticle |
| dspace.entity.type | Publication |