Strongly interacting Majorana modes in an array of Josephson junctions
Strongly interacting Majorana modes in an array of Josephson junctions
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DOI：
10.1088/1367-2630/14/12/125018
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发表时间：
2012-12-31
影响因子：
3.3
通讯作者：
Schuricht, Dirk
中科院分区：
文献类型：
--
作者：
Hassler, Fabian;Schuricht, Dirk
一系列超导岛与半导体纳米线在正确的制度提供了一个宏观实现Kitaev的玩具模型马约拉纳线。我们发现，相邻岛屿之间的电容耦合导致马约拉纳模式之间的有效相互作用。我们证明，即使强排斥相互作用最终驱动系统进入莫特绝缘状态，（平凡）带绝缘体和（平凡）莫特绝缘体之间的竞争导致任意强相互作用的interjerical拓扑绝缘状态。
An array of superconducting islands with semiconducting nanowires in the right regime provides a macroscopic implementation of Kitaev's toy model for Majorana wires. We show that a capacitive coupling between adjacent islands leads to an effective interaction between the Majorana modes. We demonstrate that, even though strong repulsive interaction eventually drives the system into a Mott insulating state, the competition between the (trivial) band insulator and the (trivial) Mott insulator leads to an interjacent topological insulating state for arbitrary strong interactions.