Super quantum discord and other correlations for tripartite GHZ-type squeezed states

Autor:	Yassine Hassouni, M. El Baz, Fatima-Zahra Siyouri, Saad Rfifi
Rok vydání:	2015
Předmět:	Physics Quantum discord Quantitative Biology::Tissues and Organs Quantum mechanics Quantum system General Physics and Astronomy Concurrence Quantum Physics Quantum entanglement Quantum information Type (model theory) Quantum
Zdroj:	Journal of the Korean Physical Society. 67:311-317
ISSN:	1976-8524 0374-4884
DOI:	10.3938/jkps.67.311
Popis:	A comparison is made between normal discord, super quantum discord, and entanglement for the tripartite Greenberger-Horne-Zeilinger (GHZ)-type squeezed states. For this aim, we start by studying the behavior of quantum discord for tripartite GHZ-type squeezed states. Also, we verify the monotonicity of the super quantum discord according to weaker quantum measurements. This was done by manipulating the amount of quantum information lost during the disruption of our quantum system and by controlling the measurement strength. Furthermore, we calculate the entanglement for our system.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ac7ee8ca9922329bd026c58f97fd673d https://doi.org/10.3938/jkps.67.311 Zobrazit plný text záznamu Full text from SpringerLink