Quantum field entropy of the system with interaction between moving Bell-state atoms and coherent light field

Abstract

The field entropy of the system with two moving atoms interacting with the coherent state is investigated by means of the full quantum theory. Under the different initial states with two atoms, the influences of the light field intensity and the atomic motion on the field entropy are discussed. The results indicate that the motion of the atoms leads to strict periodicity in the field entropy evolution. When the two atoms are in the Bell state |β₁₁〉 initially, the system is in a completely disentangled state. For the atoms initially at other Bell states, the field periodically entangles with the atoms.

Keywords

Coherent State / Entangle State / Light Field / Bell State / Maximum Entangle State

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