Generation of multiple-particle cluster state via cavity QED

• 来源期刊: 中国物理B（英文版）
• 关键词: cluster state cavity QED
• 年，卷（期）: 2008,（1）
• 页码范围: 64-69
• 页数: 6页
• 语种: 英文

摘要

This paper proposes schemes for generating multiple-photon and multiple-atom cluster states,respectively.The schemes are based on the cavity input-output process and atomic or photonic states measurement,and the successful probabilities approach unity in the ideal case.The numerical simulations show that the produced multiple-particle cluster states have high fidelity even if the Lamb-Dicke condition is not satisfied.Some practical imperfections,such as atomic spontaneous emission and output coupling inefficiency,only decrease the success probability but exert no influence on the fidelity of generated multiple-particle cluster states. From the experimental point of view,smaller operation number and lack of need for individual addressing keeps the schemes easy to implement.These schemes may offer a promising approach to the generation of a large-scale cluster state.