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arXiv 2008.06238quant-ph
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量子远程态的非经典制备

Nonclassical Preparation of Quantum Remote States

Shih-Hsuan Chen, Yu-Chien Kao, Neill Lambert, Franco Nori, Che-Ming Li

摘要:

远程状态准备(RSP)使发送方能够远程准备接收方的量子态,而无需发送状态本身。最近,人们认识到量子不和谐是RSP的必要资源。在这里,我们从理论和实验上研究RSP是否可以优于动态经典远程状态准备过程。我们表明,这样的经典过程可以描述某些RSPs供电的量子不和谐。相反,我们认为,一种新的爱因斯坦-波多尔斯基-罗森转向动力学过程,称为量子过程转向,是执行非经典RSP所需的资源。我们展示了如何通过实验实现光子量子系统的非经典RSP来测量量子过程操纵。此外,我们证明了从经典到量子RSP的过渡。我们的研究结果也有应用在实现真正的量子RSP量子工程。

英文摘要:

Remote state preparation (RSP) enables a sender to remotely prepare the quantum state of a receiver without sending the state itself. Recently, it has been recognized that quantum discord is a necessary resource for RSP. Here, we theoretically and experimentally investigate whether RSP can outperform dynamic classical remote state preparation processes. We show that such classical processes can describe certain RSPs powered by quantum discord. Rather, we argue that a new kind of Einstein-Podolsky-Rosen steering for dynamical processes, called quantum process steering, is the resource required for performing nonclassical RSP. We show how to measure quantum process steering by experimentally realizing nonclassical RSP of photonic quantum systems. Moreover, we demonstrate the transition from classical to quantum RSP. Our results also have applications in realizing genuine quantum RSP for quantum-enabled engineering.

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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