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arXiv quant-ph/0104139quant-ph
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利用真空态和纠缠态的低通量和高通量参量放大对多粒子贝尔不等式的破坏

Violation of multi-particle Bell inequalities for low and high flux parametric amplification using both vacuum and entangled input states

M. D. Reid, W. J. Munro, F. De Martini

摘要:

我们将展示如何偏振测量参数下转换产生的输出字段将揭示违反多粒子贝尔不等式,在制度的低和高输出强度。在这种情况下,每个空间分离的系统(对其进行测量)都由一个以上的粒子组成。鉴于自旋系统的形式类比,该提议提供了一个机会来测试空间分离的更高自旋态的量子力学的预测。这里的量子行为可能,即使在大量子(粒子)数的系统上进行测量也可以证明。我们的建议适用于真空状态的信号和空闲输入,也量子注入参量放大器的研究德马蒂尼等人。检测器效率低下的影响。

英文摘要:

We show how polarisation measurements on the output fields generated by parametric down conversion will reveal a violation of multi-particle Bell inequalities, in the regime of both low and high output intensity. In this case each spatially separated system, upon which a measurement is performed, is comprised of more than one particle. In view of the formal analogy with spin systems, the proposal provides an opportunity to test the predictions of quantum mechanics for spatially separated higher spin states. Here the quantum behaviour possible even where measurements are performed on systems of large quantum (particle) number may be demonstrated. Our proposal applies to both vacuum-state signal and idler inputs, and also to the quantum-injected parametric amplifier as studied by De Martini et al. The effect of detector inefficiencies is included.

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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