Concurrence Measurement for the Two-Qubit Optical and Atomic States

Autor:	Lan Zhou, Yu-Bo Sheng
Jazyk:	angličtina
Rok vydání:	2015
Předmět:	quantum entanglement concurrence quantum nondemolition measurement Science Astrophysics QB460-466 Physics QC1-999
Zdroj:	Entropy, Vol 17, Iss 6, Pp 4293-4322 (2015)
Druh dokumentu:	article
ISSN:	1099-4300 29240042
DOI:	10.3390/e17064293
Popis:	Concurrence provides us an effective approach to quantify entanglement, which is quite important in quantum information processing applications. In the paper, we mainly review some direct concurrence measurement protocols of the two-qubit optical or atomic system. We first introduce the concept of concurrence for a two-qubit system. Second, we explain the approaches of the concurrence measurement in both a linear and a nonlinear optical system. Third, we introduce some protocols for measuring the concurrence of the atomic entanglement system.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/2d3c4a29240042718af30e2079487747 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF