@article{lü_zheng_2009, 
  title={Non-Markovian dynamical effects and time evolution of the entanglement entropy of a dissipative two-state system}, 
  volume={86}, 
  DOI={10.1209/0295-5075/86/60009}, 
  publisher={IOP Publishing}, 
  author={Lü and Zheng}, 
  year={2009}, 
  month={Jun}
  }