论文标题

通过非马克维亚开放量子系统实现高保真传送的实验性实现

Experimental realization of high-fidelity teleportation via non-Markovian open quantum system

论文作者

Liu, Zhao-Di, Sun, Yong-Nan, Liu, Bi-Heng, Li, Chuan-Feng, Guo, Guang-Can, Raja, Sina Hamedani, Lyyra, Henri, Piilo, Jyrki

论文摘要

开放量子系统和对谐波的研究对于我们对量子物理现象的基本理解很重要。出于实际目的,存在大量利用量子资源的量子协议,例如纠缠,它可以超越经典手段实现的可能性。我们将开放量子系统和量子信息科学的概念结合在一起,并通过传送范围进行原则证明的实验证明,即可以通过非马克维亚开放系统有效地实施量子协议。结果表明,在实施协议时,只要有一些其他自由度或开放系统的环境,就不必将量子资源具有用于基本协议的自由度的程度,其中包含有用的资源。该实验基于一对光子,它们的极化充当开放的系统Qubits和频率作为其环境,而其中一个光子的自由度的路径自由度代表了爱丽丝量子的状态,以传送到Bob的极化量子位。

Open quantum systems and study of decoherence are important for our fundamental understanding of quantum physical phenomena. For practical purposes, there exists a large number of quantum protocols exploiting quantum resources, e.g. entanglement, which allows to go beyond what is possible to achieve by classical means. We combine concepts from open quantum systems and quantum information science, and give a proof-of-principle experimental demonstration -- with teleportation -- that it is possible to implement efficiently a quantum protocol via non-Markovian open system. The results show that, at the time of implementation of the protocol, it is not necessary to have the quantum resource in the degree of freedom used for the basic protocol -- as long as there exists some other degree of freedom, or environment of an open system, which contains useful resources. The experiment is based on a pair of photons, where their polarizations act as open system qubits and frequencies as their environments -- while the path degree of freedom of one of the photons represents the state of Alice's qubit to be teleported to Bob's polarization qubit.

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