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arXiv 0906.4528quant-ph
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混合光子纠缠:实现、表征及应用

Hybrid photonic entanglement: Realization, characterization and applications

Leonardo Neves, Gustavo Lima, Aldo Delgado, Carlos Saavedra

摘要:

我们证明了在双光子系统上通过参量下转换实现的量子退纠缠擦除器是产生混合光子纠缠的一般方法,即光子对不同自由度之间的纠缠。为了证明这一点,我们产生和表征的源与两个量子比特之间的混合纠缠度可调,一个编码的横向动量和位置的光子,和其他在其合作伙伴的偏振。此外,我们表明,我们的设置的一个简单的扩展,使双光子量子比特量子比特混合纠缠态的产生。最后,我们讨论了这种类型的纠缠可以为光量子网络带来的好处。

英文摘要:

We show that the quantum disentanglement eraser implemented on a two-photon system from parametric down-conversion is a general method to create hybrid photonic entanglement, namely the entanglement between different degrees of freedom of the photon pair. To demonstrate this, we generate and characterize a source with tunable degree of hybrid entanglement between two qubits, one encoded in the transverse momentum and position of a photon, and the other in the polarization of its partner. In addition, we show that a simple extension of our setup enables the generation of two-photon qubit-qudit hybrid entangled states. Finally, we discuss the advantages that this type of entanglement can bring for an optical quantum network.

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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