We discuss the atom-field entanglement by proposing a scheme for nonlocality of the atom-field system via nonlocaling the ladder atomic and field operators by a nonlocal unitary operator. It is shown that the standard coherent states of the constructed nonlocal atom-field quantum system are, as an issue of nonlocality, entangled. On the other hand, by proposing a model Hamiltonian for the interacting atom-field system, the standard entangled coherent states can be generated by the dynamical time evolution of the atom-field system.
Quantum Information Processing – Springer Journals
Published: Sep 1, 2011
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