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首页> 外文期刊>Physical review >Teleportation-induced entanglement of two nanomechanical oscillators coupled to a topological superconductor
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Teleportation-induced entanglement of two nanomechanical oscillators coupled to a topological superconductor

机译:隐形传态引起的与拓扑超导体耦合的两个纳米机械振荡器的纠缠

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摘要

A one-dimensional topological superconductor features a single fermionic zero mode that is delocalized over two Majorana bound states located at the ends of the system. We study a pair of spatially separated nanomechanical oscillators tunnel coupled to these Majorana modes. Most interestingly, we demonstrate that the combination of electron-phonon coupling and a finite charging energy on the mesoscopic topological superconductor can lead to an effective superexchange between the oscillators via the nonlocal fermionic zero mode. We further show that this electron teleportation mechanism leads to entanglement of the two oscillators over distances that can significantly exceed the coherence length of the superconductor.
机译:一维拓扑超导体的特征是单个铁离子零模,该零模在位于系统末端的两个马约拉纳结合态上被局域化。我们研究耦合到这些Majorana模式的一对空间分离的纳米机械振荡器。最有趣的是,我们证明了介观拓扑超导体上的电子-声子耦合和有限的充电能量的组合可以通过非局部铁电零模式导致振荡器之间的有效超交换。我们进一步表明,这种电子隐形传态机制导致两个振荡器纠缠在一定距离上,该距离可能大大超过超导体的相干长度。

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