arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1107.4102cond-mat.supr-con
收藏

Majorana束缚态的非常规Josephson签名

Unconventional Josephson signatures of Majorana bound states

Liang Jiang, David Pekker, Jason Alicea, Gil Refael, Yuval Oreg, Felix von Oppen

摘要:

含有一对马约拉纳费米子的两个拓扑超导体之间的结表现出“分数”约瑟夫森效应,超导体的相位差呈$4π$周期性。然而,当马约拉纳在空间上被超导势垒隔开时,就会产生额外的分数约瑟夫森效应。这个新的术语产生了一组夏皮罗步骤,基本上没有马约拉纳模式,因此提供了一个独特的签名,这些异国情调的国家。

英文摘要:

A junction between two topological superconductors containing a pair of Majorana fermions exhibits a `fractional' Josephson effect, $4π$ periodic in the superconductors' phase difference. An additional fractional Josephson effect, however, arises when the Majoranas are spatially separated by a superconducting barrier. This new term gives rise to a set of Shapiro steps which are essentially absent without Majorana modes and therefore provides a unique signature for these exotic states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑