We consider a pair of three - level atoms interacting with a common vacuum and analyze the process of entanglement production due to spontaneous emission. We show that in the case of closely separated atoms, collective damping can generate robust entanglement of the asymptotic states.
@article{arxiv.0710.5048,
title = {Vacuum - induced stationary entanglement in radiatively coupled three - level atoms},
author = {L. Derkacz and L. Jakobczyk},
journal= {arXiv preprint arXiv:0710.5048},
year = {2009}
}