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Optoelectronics Letters

Generation of four-photon GHZ states based on interaction between a four-level atom and two bimodal cavities

张登玉, 唐世清, 汪新文, 谢利军, 詹孝贵, 陈银花

Published Jan 1, 2012• 0 citations
OpenAlex

Abstract

一个简单计划被介绍因为产生四光子的 Greenberger-Horne-Zeilinger (GHZ ) 与在一个四水平的原子和二个 bimodal 洞之间的相互作用说。在建议协议，量信息在洞地的 Fock 状态上被编码。原子的察觉能折叠洞到需要的状态。我们的建议的试验性的可行性也被讨论。

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A simple scheme is presented for generating four-photon Greenberger-Horne-Zeilinger states with a large detuned interaction between a three-level atom and two bimodal cavities. In the proposed protocol, the quantum information is encoded on Fock states of the cavity-fields, and the atomic spontaneous emission can be effectively suppressed due to the fact that the excited state of the atom is adiabatically eliminated under the large detuning condition. The detection of the atom can collapse the cavity to the desired state. The experimental feasibility of our proposal is also discussed.