Entanglement of two-qutrit system
Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou 310027, P.R. China
Corresponding author: a email@example.com
Revised: 12 January 2005
Published online: 28 April 2005
In this paper, von Neumann entropy is used to study three kinds of bipartite qutrit model, which represent SU(3) strongly correlated model, three-level Lipkin-Meshkov-Glick model, and spin-1 model. The relation between the ground-state entanglement and the quantum phase transition in those models is exhibited and the connection between the entanglement extremes and the symmetries is also discussed.
PACS: 03.65.Ud – Entanglement and quantum nonlocality / 03.67.Mn – Entanglement production, characterization and manipulation / 03.65.Ca – Formalism
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005