Approximating the Sachdev-Ye-Kitaev model with Majorana wires
Approximating the Sachdev-Ye-Kitaev model with Majorana wires
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DOI：
10.1103/physrevb.96.121119
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发表时间：
2017-09-29
影响因子：
3.7
通讯作者：
Alicea, Jason
中科院分区：
文献类型：
--
作者：
Chew, Aaron;Essin, Andrew;Alicea, Jason
Sachdev-Ye-Kitaev（SYK）模型描述了一组随机相互作用的马约拉纳费米子，它们与量子混沌和黑洞有着深刻的联系。我们提出了一个固态实现的基础上耦合到一个阵列的拓扑超导导线托管马约拉纳零模式的量子点。相互作用和无序固有的点调解所需的随机马约拉纳耦合，而近似对称抑制额外的不必要的条款。我们使用随机矩阵理论和数值表明，我们的设置模拟SYK模型（我们量化的校正），并讨论实验签名。
The Sachdev-Ye-Kitaev (SYK) model describes a collection of randomly interacting Majorana fermions that exhibits profound connections to quantum chaos and black holes. We propose a solid-state implementation based on a quantum dot coupled to an array of topological superconducting wires hosting Majorana zero modes. Interactions and disorder intrinsic to the dot mediate the desired random Majorana couplings, while an approximate symmetry suppresses additional unwanted terms. We use random-matrix theory and numerics to show that our setup emulates the SYK model (up to corrections that we quantify) and discuss experimental signatures.