Abstract
In this paper, we introduce useful scheme of the atom-atom interaction in the case of absence and presence of the atomic motion effect. The quantum entanglement between the two two-level atoms based on concurrence quantifier will be investigated. The dependence atom-atom entanglement on the different system parameters will be examined. Moreover, the influence of the atomic motion and initial state setting on the dynamical behavior of the entanglement between two atoms will be discussed. Furthermore, we have explored some important phenomena related to the entanglement between two atoms such as entanglement sudden death (ESD) and entanglement sudden birth (ESB). Finally, we have obtained a high amount of the atom-atom entanglement by a proper choice of the system parameters in the case of stationary and moving atoms. (C) 2016 Published by Elsevier GmbH.