TY - JOUR
T1 - Negative entanglement measure, and what it implies
AU - Yu, Ting
AU - Eberly, J. H.
PY - 2007/9
Y1 - 2007/9
N2 - In this paper, we extract from concurrence its variable part, denoted, a function of density matrix, either positive or negative. We use it to investigate entanglement dynamics of two isolated but initially entangled qubits, each coupled to its own environment. In particular, we show that it can signal whether the disentanglement of an entangled state occurs in a finite time.
AB - In this paper, we extract from concurrence its variable part, denoted, a function of density matrix, either positive or negative. We use it to investigate entanglement dynamics of two isolated but initially entangled qubits, each coupled to its own environment. In particular, we show that it can signal whether the disentanglement of an entangled state occurs in a finite time.
UR - http://www.scopus.com/inward/record.url?scp=35148858983&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=35148858983&partnerID=8YFLogxK
U2 - 10.1080/09500340701432581
DO - 10.1080/09500340701432581
M3 - Article
AN - SCOPUS:35148858983
SN - 0950-0340
VL - 54
SP - 2289
EP - 2296
JO - Journal of Modern Optics
JF - Journal of Modern Optics
IS - 13-15
ER -