The behavior of the two-level entangled atom in an optical field

The behavior of a two-level entangled atom in an optical field is studied in this paper. The interaction of an optical field and one of the entangled atoms is analyzed in detail. A general solution to the Schrödinger equation about the motion of the entangled atom is obtained. Next, the dynamic properties of the two-atom entangled system are arrived at. The properties of the action are dependent on the initial state of the atom. After detecting the entangled atom out of the field, we can obtain the state of the other atom moving in the field. It is shown that the state of the atom out of the field influences the dynamic properties of the split-levels of the atom in the field.