论文标题
量子大厅的损失和破坏性 - 超导体界面
Loss and decoherence at the quantum Hall - superconductor interface
论文作者
论文摘要
我们对量子大厅（QH）方向的超导体和石墨烯之间的界面上的Andreev转换进行了系统的研究。我们发现，Andreev从电子到孔的转化的可能性遵循出乎意料但清晰的趋势：对温度和磁场的依赖性几乎被解耦。我们讨论了这些趋势以及超导涡旋的作用，它们的正常核可以吸收QH边缘的单个电子。我们的研究可能铺平了工程未来一代混合设备的道路，以利用手性渠道的超导性接近。
We perform a systematic study of Andreev conversion at the interface between a superconductor and graphene in the quantum Hall (QH) regime. We find that the probability of Andreev conversion from electrons to holes follows an unexpected but clear trend: the dependencies on temperature and magnetic field are nearly decoupled. We discuss these trends and the role of the superconducting vortices, whose normal cores could both absorb and dephase the individual electrons in a QH edge. Our study may pave the road to engineering future generation of hybrid devices for exploiting superconductivity proximity in chiral channels.
