Measures of entanglement based on decoherence

Authors
Blanchard, P Jakobczyk, L Olkiewicz, R
Citation
P. Blanchard et al., Measures of entanglement based on decoherence, J PHYS A, 34(41), 2001, pp. 8501-8516
Citations number
23
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL
ISSN journal
03054470 → ACNP
Volume
34
Issue
41
Year of publication
2001
Pages
8501 - 8516
Database
ISI
SICI code
0305-4470(20011019)34:41<8501:MOEBOD>2.0.ZU;2-A
Abstract
New measures of entanglement-the time of disentanglement and the rate of de coherence-of states of a compound system are proposed. They are based on th e dynamical properties of the system induced by the measurement-like intera ction with an environment. In particular, it is shown that in the case of t wo qubits the time of disentanglement may serve as a practical measure of e ntanglement of mixed states.