利用单光子实现固态存储器之间的纠缠

Using Single-Photon to Achieve Entanglement between Solid-State Memories

基于可控逆非均匀展宽(CRIB)存储技术,利用DLCZ方案中原子系综产生纠缠的思想,我们提出了一个利用单光子实现固态存储器之间纠缠的方案,并将它应用于量子中继器。与传统的方案相比,该方案不需要纠缠光子源,只需要独立的两个单光子源,这样不仅可简化实验过程,还可以节约量子资源,此外在单光子量级上保密性也可得到保障。

Based on the Controlled Reversible Inhomogeneous Broadening （CRIB） storage technology and the thought of atomic ensemble entanglement in the DLCZ scheme, we proposed a scheme that a single photon helps us establish an entanglement between solid state memories, which was applied to quantum repeater. Compared with traditional schemes, our proposal does not require an entangled photon source. It only requires two independent single photon sources, which simplifies the experiment process and save quantum resource and additionally protect confidentiality in the magnitude of the single photon.