The stabilization of steady state entanglement caused by action of a classical driving field in the system of two-level atoms with the dipole interaction accompanied by spontaneous emission is discussed. An exact solution shows that the maximum amount of concurrence that can be achieved in Lamb-Dicke limit is 0.43, which corresponds to the entanglement $\mathcal{ E}_{ max}=0.285$ ebit. Dependence of entanglement on interatomic distance and classical driving field is examined numerically.
Categories: quant-ph