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arXiv quant-ph/0412141quant-phcond-mat.mes-hall
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纠缠测度的退相干

Decoherence of a Measure of Entanglement

D. Tolkunov, V. Privman, P. K. Aravind

摘要:

我们证明了一个明确的模型计算,两个两态系统(两个量子比特)的纠缠的衰减是由产品的因素,测量每个量子比特的退相干程度,受到独立的量子噪声源。这证明了一个重要的物理性质,即分离的开放量子系统可以在比它们保持纠缠的时间更大的时间尺度上量子力学地进化。

英文摘要:

We demonstrate by an explicit model calculation that the decay of entanglement of two two-state systems (two qubits) is governed by the product of the factors that measure the degree of decoherence of each of the qubits, subject to independent sources of quantum noise. This demonstrates an important physical property that separated open quantum systems can evolve quantum mechanically on time scales larger than the times for which they remain entangled.

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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