Non-Markovianity for a qubit system driven by a classical phase noisy laser Youneng Guo, Maofa Fang, Shiyang Zhang, Jiang Huang and Xiang Liu Eur. Phys. J. D, 68 11 (2014) 335 Published online: 04 November 2014 DOI: 10.1140/epjd/e2014-50478-6