Multipartite entangled states with two bosonic modes and qubits
Departamento de Física, Universidade Estadual de Ponta Grossa, Campus Uvaranas, 84030-900 Ponta Grossa, Brazil
Corresponding author: a firstname.lastname@example.org
Revised: 14 May 2010
Published online: 16 July 2010
We theoretically investigate the role of different phases of coupling constants in the dynamics of atoms and two cavity modes, observing deterministic generation of prototype or hybrid Bell, W, GHZ, and cluster states. Commonly induced dipole-dipole interactions (far-off resonance) are inhibited between particular pairs of qubits under suitable choice of those phases. We evaluate the generation fidelities when imperfections such as dissipative environments and time precision errors are considered. We show violation of local realism for the generated cluster state under such imperfections, even when approaching the weak coupling regime.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010