Multiplexed Quantum Integrated Circuits

量子器件的低温多路复用器允许针对相互作用的低维系统中的量子传输进行相互竞争的理论测试，并且由于可以同时测试大量器件，因此可以使用统计方法来发现量子纳米器件。我们在二维电子气中诱导超导，并正在寻找马约拉纳费米子。在这个项目中，我们希望从几个方面着手，全部使用分裂栅极晶体管集成电路，以探索新的物理、新技术和新的电子学。这个项目将得到补充(通过其他本地项目和使用我们设施的其他项目的投入)，因此在接下来的三年里将继续进行以下大部分主题：(*=本项目的核心部分)1.千兆赫兹多路复用器*2.超导/半导体集成电路，包括使用多路复用器寻址的拓扑绝缘材料*3.耦合到超导体的纳米线集成电路，用于研究Majorana模的健壮程度，并探索它们是否可以可靠地用于量子技术*4.通过每个门上的特定电荷存储进行独立偏置5.纳米级多路复用器6.微米级电压相机电路7.具有感应2DEG的多路复用器，以减少波动*8.在量子点中并行抽运单电子，为当前标准提供大电流高精度泵浦*9.为外部用户建立设施*

The low-temperature multiplexer for quantum devices has allowed competing theories regarding quantum transport in interacting low-dimensional systems to be tested against experiment and because of the large numbers of devices that can be tested at once, a statistical approach to quantum nano-device physics discovery can be used. We induced superconductivity in two-dimensional electron gases and are searching for Majorana fermions. In this project, we want to proceed on several fronts, all using integrated circuits of split-gate transistors, to explore new physics, new technology and new electronics. This project will be supplemented (by other local projects and by the input from others using our facilities) so that most of the following topics will be pursued over the next three years: (* = core part of this project)1. A gigahertz multiplexer*2. Superconducting/semiconducting integrated circuits including topological insulator material addressed using the multiplexer*3. Nanowire integrated circuits coupled to superconductors for investigating how robust Majorana modes are and exploring whether they could be reliably used for quantum technology*4. Independent biasing through specific charge storage on each gate 5. Nanoscale multiplexer 6. A voltage camera circuit on the micron-scale7. Multiplexers with induced 2DEGs to reduce fluctuations* 8. Single electron pumping in quantum dots in parallel to provide high current high accuracy pumps for a current standard*9. Setting up a facility for external users*