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arXiv 0907.0485gr-qcquant-ph
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通过Unruh效应导致纠缠的突然死亡和隐形传态保真度的损失

Sudden death of entanglement and teleportation fidelity loss via the Unruh effect

Andre G. S. Landulfo, George E. A. Matsas

摘要:

我们利用Unruh效应研究了当其中一个纠缠量子比特受到某种外力的影响时,对量子态的隐形传态的影响。为了达到一个全面的理解,这种纠缠量子比特系统的加速效应进行了详细的分析。特别地,我们计算了两个量子比特之间的互信息和并发,并表明后者在有限加速时具有“突然死亡”,其值将取决于检测器加速的时间间隔。

英文摘要:

We use the Unruh effect to investigate how the teleportation of quantum states is affected when one of the entangled qubits used in the process is under the influence of some external force. In order to reach a comprehensive understanding, a detailed analysis of the acceleration effect on such entangled qubit system is performed. In particular, we calculate the mutual information and concurrence between the two qubits and show that the latter has a ``sudden death" at a finite acceleration, whose value will depend on the time interval along which the detector is accelerated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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