Entanglement evolution in the open quantum systems consisting of asymmetric oscillators Davood Afshar, Somayeh Mehrabankar and Farkhondeh Abbasnezhad Eur. Phys. J. D, 70 3 (2016) 64 Published online: 22 March 2016 DOI: 10.1140/epjd/e2016-60592-0