Influences of initial states of a bath on the dynamics of central spin Wen-Jian Yu, Bao-Ming Xu, Lin Li, Jian Zou, Hai Li and Bin Shao Eur. Phys. J. D, 69 6 (2015) 147 Published online: 04 June 2015 DOI: 10.1140/epjd/e2015-50858-4