Quantum Devices in Topologically Non-Trivial Electronic Systems

拓扑非平凡电子系统中的量子器件

• 批准号: RGPIN-2016-04243
• 负责人: Folk, Joshua
• 金额: $ 5.39万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=650893
• 关键词: Quantum; Devices; Topologically; Non; Trivial

The last ten years have seen an explosion in the potential for topology to affect our everyday lives through electronics. When many of us think of topology, we think of a Mobius strip demonstration in high school, or an esoteric branch of mathematics, but in fact several recent discoveries have connected these abstract concepts with applications that may change the way electronics and information processing works in the future. For example, so-called topological insulators may be developed that enable computer chips to run with markedly lower energy loss.******An even more revolutionary connection between topology and electronics is the recent theoretical developments, and experimental hints, that new kinds of particles can be created in a table-top device that have very counterintuitive--but useful--topological characteristics. These would be particles like electrons, but unlike electrons they would retain a memory of the paths they have followed in the past. Take two of these particles, and move one around the other so it comes back to the same place. The particles look the same, but both particles' quantum mechanical states have completely changed due just to this looping operation. If these predictions turn out to be true, it will open new avenues for quantum computing that do not suffer from the same challenges of current approaches.******Here, we propose a head-on assault on the challenge of bringing topology to bear in electronics. Working closely with the two top groups in the world in this area, we aim in five years to make the first electronic devices whose operation depends on particles with non-trivial topologies like those described above.**

在过去的十年里，拓扑学通过电子产品影响我们日常生活的潜力呈爆炸式增长。当我们很多人想到拓扑时，我们会想到高中时的莫比乌斯带演示，或者数学的一个深奥分支，但事实上，最近的一些发现将这些抽象概念与应用联系起来，这些应用可能会改变未来电子和信息处理的工作方式。例如，所谓的拓扑绝缘体可能被开发出来，使计算机芯片运行时的能量损失显著降低。******拓扑学和电子学之间更具革命性的联系是最近的理论发展和实验提示，即可以在桌面设备中创造出具有非常违反直觉但有用的拓扑特征的新型粒子。这些粒子会像电子一样，但与电子不同的是，它们会保留它们过去所遵循的路径的记忆。拿两个这样的粒子，让其中一个绕着另一个移动，这样它们就会回到同一个地方。粒子看起来是一样的，但是由于这个循环操作，两个粒子的量子力学状态完全改变了。如果这些预测被证明是正确的，它将为量子计算开辟新的途径，而不会受到当前方法的同样挑战。******在此，我们提出正面的挑战，将拓扑学引入电子领域。与世界上这一领域的两个顶级团队密切合作，我们的目标是在五年内制造出第一个电子设备，其操作依赖于具有如上所述的非平凡拓扑的粒子