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arXiv 0905.3301quant-ph
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相对加速的观察者之间的量子不和谐

Quantum discord between relatively accelerated observers

Animesh Datta

摘要:

我们计算了标量场的两个自由模之间的量子不和谐,这两个自由模开始于一个最大纠缠态,然后经历一个相对恒定的加速度。在一个制度中,没有可解释的纠缠由于Unruh效应,我们表明,有一个有限量的量子不和谐,这是一个纯粹的量子相关性的状态,超过量子纠缠。即使在无限加速的观察者检测模式之一的限制,我们提供了一个非零量的纯量子相关性,这可能被利用来获得非平凡的量子优势的证据。

英文摘要:

We calculate the quantum discord between two free modes of a scalar field which start in a maximally entangled state and then undergo a relative, constant acceleration. In a regime where there is no distillable entanglement due to the Unruh effect, we show that there is a finite amount of quantum discord, which is a measure of purely quantum correlations in a state, over and above quantum entanglement. Even in the limit of infinite acceleration of the observer detecting one of the modes, we provide evidence for a non-zero amount of purely quantum correlations, which might be exploited to gain non-trivial quantum advantages.

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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