论文标题
量子传送方案中的轨道和电子纠缠
Orbital and electronic entanglement in quantum teleportation schemes
论文作者
论文摘要
随着朝着更紧凑的量子计算体系结构的进展，需要解决有关无法区分的粒子纠缠的基本问题。在固态设备中，此任务自然连接到电子的量子相关性。在这里，我们研究了电子之间的纠缠，重点关注模式的纠缠，颗粒的纠缠以及粒子串联超选择规则的效果。我们阐明了密切相关的材料中模式和粒子纠缠的形成，并表明两者都代表量子信息任务（例如量子传送）中的重要资源。为此，我们对三种电子隐性传送方案进行定性和定量分析纠缠：（i）石墨烯分子内的量子传送，（ii）一个氮 - 脱位中心和（iii）量子点阵列。
With progress towards more compact quantum computing architectures, fundamental questions regarding the entanglement of indistinguishable particles need to be addressed. In a solid state device, this quest is naturally connected to the quantum correlations of electrons. Here, we investigate the entanglement between electrons, focusing on the entanglement of modes, the entanglement of particles and the effect of particle-number superselection rules. We elucidate the formation of mode and particle entanglement in strongly correlated materials and show that both represent important resources in quantum information tasks such as quantum teleportation. To this end, we qualitatively and quantitatively analyze the entanglement in three electronic teleportation schemes: (i) quantum teleportation within a molecule on graphene, (ii) a nitrogen-vacancy center and (iii) a quantum dot array.
