We present non-local dynamics of Bell states in separate cavities. It is demonstrated that (i) the entanglement damping speed will saturate when the cavity leakage rate γ≥0.4; (ii) the synchronism relationship between the fidelity and the concurrence depends on the initial state; (iii) if the initial state is 1/2(∣01>+∣10>), the dynamics of entropy is opposite to that of fidelity.
@article{arxiv.0711.1923,
title = {Non-local dynamics of Bell states in separate cavities},
author = {Jun Jing and Zhi-guo Lü and Guo-hong Yang},
journal= {arXiv preprint arXiv:0711.1923},
year = {2009}
}