A polarization encoded photon-to-spin interface
A polarization encoded photon-to-spin interface
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DOI：
10.1038/s41534-020-00337-3
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发表时间：
2021-01-04
影响因子：
7.6
通讯作者：
Englund, D.
中科院分区：
文献类型：
--
作者：
Chen, K. C.;Bersin, E.;Englund, D.
我们提出了一种集成光子器件，用于将在光子偏振中编码的量子比特映射到耦合到光子晶体腔的固态缺陷的自旋状态：“极化编码光子自旋界面”（PEPSI）。我们从理论上分析了器件偏振消光比和原子腔协同性对状态保真度的影响。此外，我们通过分析和数值模型探讨了速率-保真度的权衡。在模拟中，我们证明了我们的设计能够实现高效，高保真的光子自旋映射。
We propose an integrated photonics device for mapping qubits encoded in the polarization of a photon onto the spin state of a solid-state defect coupled to a photonic crystal cavity: a "polarization-encoded photon-to-spin interface" (PEPSI). We perform a theoretical analysis of the state fidelity's dependence on the device's polarization extinction ratio and atom-cavity cooperativity. Furthermore, we explore the rate-fidelity trade-off through analytical and numerical models. In simulation, we show that our design enables efficient, high fidelity photon-to-spin mapping.