Year: 2010
Type: article
Abstract: We propose a detailed study of the geometric entanglement properties of pure symmetric $N$-qubit states, focusing more particularly on the identification of symmetric states with a high geometric entanglement and how their entanglement behaves asymptotically for large $N$. We show that much higher geometric entanglement with improved asymptotical behavior can be obtained in comparison with the highly entangled balanced Dicke states studied previously. We also derive an upper bound for the geometric measure of entanglement of symmetric states. The connection with the quantumness of a state is discussed.
Source: Physical Review A
Authors: J. Martin, O. Giraud, P. A. Braun, D. Braun, T. Bastin
Institutions: University of Liège, Université Paris-Sud, Centre National de la Recherche Scientifique, Université Toulouse III - Paul Sabatier, Laboratoire de Physique Théorique et Modèles Statistiques, Laboratoire de Physique Théorique, Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes, Université de Toulouse, St Petersburg University, University of Duisburg-Essen
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1993374784