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Practical scheme for remote preparation of a photon-photon entangled state 总被引:1,自引:0,他引:1 下载免费PDF全文
We present a scheme to remotely prepare a photon--photon entangled
state via entanglement swapping in cavity QED. Using two successive
processes of appropriate atom--cavity interaction and subsequent
measurements, we obtain the entangled state with certain
probability. 相似文献
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We present a protocol for multi-party superdense coding by using multi-atom in cavity quantum electrodynamics (QED). It is shown that, with a highly detuned cavity mode and a strong driving field, the protocol is insensitive to both cavity decay and thermal field. It is even certain to identify GHZ states via detecting the atomic states. Therefore we can realize the quantum dense coding in a simple way in the multiparty system. 相似文献
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We describe a protocol for telecloning a quantum state to M distant users via an ( M + 1)-particle W state, In the scheme, two atoms interact simultaneously with a highly detuned cavity mode with the assistance of a classical field. The scheme is insensitive to the cavity decay and the thermal field. Moreover, the Bell-state measurement can be achieved by detecting two atoms separately. Thus telecloning can be realized in a simple way. 相似文献
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基于综合害虫管理策略(IPM),对具有脉冲效应的一般功能反应的两种群捕食与被捕食模型进行了分析.通过利用脉冲微分方程的Floquet理论和比较原理,证明了当脉冲周期小于某个临界值时,系统存在一个全局渐近稳定的害虫根除周期解. 相似文献
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研究了一类非自治非线性的泛涵微分方程,运用不动点原理,得到了系统有界性和零解的全局吸引性的充分条件. 相似文献
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