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Acta Scientiarum Naturalium Universitatis Neimongol

Preparation of Multi-atom GHZ States via the Raman Interaction of V-type Three-level Atoms and One Coherent Cavity Field

Changyong Chen

Published Jan 1, 2004• 0 citations
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Abstract

A scheme is presented for the preparation of multi-atom GHZ states via the Raman interaction of degenerate V-type three-Level atoms and one coherent-state-cavity-field.

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Communications in Theoretical Physics•Dec 1, 2005•1 citation
We present an alternative scheme for preparing the superpositions of coherent states along a straight line of a cavity field using degenerate atom-cavity field Raman interaction. In the scheme, a collection of Λ-type three-level atoms is orderly sent through the cavity to interact with the cavity field adjusted by a microwave source connected to it, followed by state-selective measurements. In this way, we can prepare the superpositions of several coherent states along a straight line with arbitrary weighting factors for the cavity field. In the scheme, the coherence of the atom-cavity system may be maintained and the second microwave field is unnecessary, which is prior to the previous scheme.