The ABC of Deutsch–Hayden Descriptors

Autor: Charles Alexandre Bédard
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Quantum Reports, Vol 3, Iss 2, Pp 272-285 (2021)
Druh dokumentu: article
ISSN: 2624-960X
DOI: 10.3390/quantum3020017
Popis: It has been more than 20 years since Deutsch and Hayden proved the locality of quantum theory, using the Heisenberg picture of quantum computational networks. Of course, locality holds even in the face of entanglement and Bell’s theorem. Today, most researchers in quantum foundations are still convinced not only that a local description of quantum systems has not yet been provided, but that it cannot exist. The main goal of this paper is to address this misconception by re-explaining the descriptor formalism in a hopefully accessible and self-contained way. It is a step-by-step guide to how and why descriptors work. Finally, superdense coding is revisited in the light of descriptors.
Databáze: Directory of Open Access Journals