Multipartite entanglement dynamics and decoherence

We study the dynamics of multipartite entanglement under decoherence induced by the environment consisting of a fermionic bath. Based on the algebraic measure of entanglement-negativity, we analyze the time evolution of entanglement of both pure states and mixed ones, and find that entanglement evol...

Full description

Saved in:
Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2006-01, Vol.37 (1), p.135-140
Main Authors: Ma, X. S., Wang, A. M., Yang, X. D., Xu, F.
Format: Article
Language:English
Subjects:
Entanglement
Evolution
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study the dynamics of multipartite entanglement under decoherence induced by the environment consisting of a fermionic bath. Based on the algebraic measure of entanglement-negativity, we analyze the time evolution of entanglement of both pure states and mixed ones, and find that entanglement evolution depends on both bath temperature and the number of qubits of the system. A linear space SLDF which is dynamically decoupled from the environment is identified in the sense of linear entropy to symbolize the environment effect.
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2005-00247-9