论文标题
韦尔半学中的表面等离子体偏振子长期固定的量子纠缠
Long-lived qubit entanglement by surface plasmon polaritons in a Weyl semimetal
论文作者
论文摘要
我们研究了Weyl Semimital中的非置换表面等离子体极化子（SPP）介导的两个量子的自发纠缠。在没有外部磁场的情况下，Weyl Semimetal的拓扑甚至会引起非偏置SPP，这些spp受拓扑保护并驻留在光子间隙内。我们利用这种非转化属于两个空间分离量子的纠缠的中介。我们的两个主要发现是：（1）与倒数相比，非股本SPP给出了更好的量子纠缠，并且（2）与使用常规金属中的spp相比，所达到的纠缠足够长。
We investigate spontaneous entanglement of two qubits mediated by nonreciprocal surface plasmon polaritons (SPPs) in a Weyl semimetal. In the absence of external magnetic fields, the topology of the Weyl semimetal even gives rise to nonreciprocal SPPs that are topologically protected and reside inside the photonic gap. We utilize this nonreciprocal SPP as a mediator of entanglement of two spatially-separated qubits. Our two main findings are: (1) the nonreciprocal SPP gives better quantum entanglement than the reciprocal one, and (2) the achieved entanglement is sufficiently long-lived compared to the entanglement using SPPs in conventional metals.
