,Generation of cluster-type entangled squeezed vacuum states

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We present a scheme to prepare cluster-type entangled squeezed vacuum states (CTESVS) by considering the two-photon interaction between a two-level atom and a high-quality cavity,driven by a strong classical field.After the realization of simple atomic measurements,the generation of CTESVS in four separate cavities is accomplished within the cavity decay time.In the case of large atom-cavity detuning,the scheme is immune to the effect of atomic spontaneous emission.
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