Abstract

Though the resonant dipole-dipole interaction (RDDI) has been suggested for realization of entangling dynamics several years ago, it was only recently that several authors [1,2] have investigated this interaction in more detail as a method for entangling neutral atoms in optical traps. While the authors of Ref. [1] offered qualitative arguments for realization of this idea in dipole traps, the papers [2] investigated quantitative models of generation of maximally entangled states of two two-level atoms. Unfortunately, the considered entangled states of two-level atoms have very short lifetimes due to radiative decay. This is explained by the fact that radiative decay and the RDDI have the same physical nature, and we cannot avoid the former while making use of the latter. In this work we solve this conceptual problem by presenting new methods for creation of radiatively stable entanglement in a system of two dipole-interacting three-level atoms.

© 2000 IEEE