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arXiv 2407.01587quant-ph
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单光子导引与量子力学无相互作用测量是同一现象

The single-photon steering and the quantum mechanical free-interaction measurement are identical phenomena

LM Arévalo Aguilar, Rolando Velázquez García

AI总结:

本文提出利用光子内部自由度实验演示单光子导引,并证明其与量子力学无相互作用测量是同一现象,共同源于波函数非局域性,从而为反事实量子通信与计算提供支持。

摘要:

在这项工作中,首先,我们提出如何以一种简单的方式实验演示单光子导引现象。量子导引现象由埃尔温·薛定谔发现,他论证量子力学定律迫使我们承认:通过对两个纠缠系统之一进行适当的测量,可以确定并导引另一个系统的状态。另一方面,关于单光子非局域性的第一个方案侧重于利用单光子路径纠缠来展示贝尔非局域性。在这里,我们提出一种新的实验方案,通过引入并操控光子的内部自由度(IDF),容易地演示单光子态的非局域导引现象。我们提出的实验装置不同于量子光学文献中已发表的用于展示单光子非局域性的装置,后者通常使用光子路径纠缠和零差测量。其次,通过引入其内部自由度,我们证明单光子导引与量子力学无相互作用测量(QM-IFM)是同一现象;我们将论证QM-IFM只是单光子导引的一个特例。简言之,单光子导引和QM-IFM(作为同一现象)具有共同的原因:波函数的非局域性。总之,我们已经证明,通过操控单光子的内部自由度可以产生非局域现象。另一方面,导引与QM-IFM之间的这种统一可以为反事实量子通信和量子计算提供强有力的支持。

英文摘要:

In this work, firstly, we propose how to experimentally demonstrate the single photon steering phenomenon in a simple way. The quantum steering phenomenon was discovered by Erwin Schrodinger, who reason that the laws of quantum mechanics obliges us to admit that by suitable measurements taken on one of two entangled system, then the state of the other system can be determined and steered. On the other hand, the first proposal about the nonlocal property of a single photon focus on showing the Bell nonlocality by using the single-photon path entanglement. Here, we propose a new experimental scheme that, by incorporating and manipulating the internal degree of freedom (IDF) of the photon, easily demonstrate the nonlocal steering phenomenon of single-photon's states. The experimental set-up that we propose differs from those published in the quantum optics' literature to shown the single photon nonlocality, which generally use the path entanglement of photons and homodyne measurements. Secondly, by incorporating its IDF, we show that the single photon steering and the quantum mechanical interaction-free measurement (QM-IFM) are identical phenomena; we will argue that QM-IFM is just a particular instance of the single-photon steering. In short, both the single photon steering and QM-IFM (being identical phenomena) have a common cause: the nonlocality of the wave function. In conclusion, we have demonstrated that it is possible to produce a nonlocal phenomena by manipulating the single photon internal degree of freedom. On the other hand, this unification between steering and QM-IFM could establish a strong support to counterfactual quantum communication and computation.

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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