Environment-induced sudden death of entanglement.
We demonstrate the difference between local, single-particle dynamics and global dynamics of entangled quantum systems coupled to independent environments. Using an all-optical experimental setup, we showed that, even when the environment-induced decay of each system is asymptotic, quantum entanglement may suddenly disappear. This "sudden death" constitutes yet another distinct and counterintuitive trait of entanglement.
Almeida
M P
MP
Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro RJ 21941-972, Brazil.
de Melo
F
F
Hor-Meyll
M
M
Salles
A
A
Walborn
S P
SP
Ribeiro
P H Souto
PH
Davidovich
L
L