Field tuned atom-atom entanglement via diople-dipole interaction

We propose a simple scheme, in which only one atom couples to a cavity field, to entangle two two-level atoms. We connect two atoms with dipole-dipole interaction since one of them can move around the cavity. The results show that the peak entanglment does not depend on dipoledipole interaction strength but on field density at a certain controlling time. So the field density can act as a switch for maximum entanglement (ME) generation. PACS number: 03.67.-a, 03.67.-Hz, 42.81.Qb