NSF Convergence Accelerator Track C: Synergistic Thrusts Towards Practical Topological Quantum Computing

NSF融合加速器支持以使用为灵感，以团队为基础，多学科的努力，解决国家重要性的挑战，并将在不久的将来产生对社会有价值的可交付成果。本项目旨在通过可伸缩拓扑超导体（TSC）开发解决退相干和串扰问题的方法。实现现实的大规模量子计算机是推进量子信息科学领域发展的必要条件。该项目将马约拉纳零模式（MZMs）集成到传统的超导量子比特架构中，以推进其在量子计算中的应用。通过对K-12学生的拓展计划和本科生的研究经验，该项目将扩大对量子的参与，重点关注未被充分代表的少数民族。该项目将建立一个跨部门团队，在控制材料的拓扑性质方面取得进展，以推进量子计算，以提供容错量子比特及其量子互连。本项目寻求(1)通过检测一对MZMs的电子隐形传态来理解和证明MZMs的非局部拓扑性质；(2)建立了测量隐形传态t量子位奇偶态的基本元素；(3)探索由MZMs介导的超电流环引起的通量量子化，建立t量子位元的基本通量（或伪自旋）测量；(4)确定和规划二期研究计划；(5)建立一个由学术、政府实验室和工业合作伙伴组成的强大团队。基于新TSC材料平台的最新发展，该项目旨在展示平台中mzm的量子性质和非局部拓扑保护，并构建可集成到现有量子计算电路中的拓扑量子位。这可能会导致超导电路的更大功能，从而显著推进拓扑量子计算。该项目可交付成果包括一个支持拓扑量子比特的平台，该平台更健壮，更具可扩展性。通过建立一个全国性的学生交流计划和面向K-12学生的外展活动，该项目旨在让学生参与量子研究和培训，以扩大参与度。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The NSF Convergence Accelerator supports use-inspired, team-based, multidisciplinary efforts that address challenges of national importance and will produce deliverables of value to society in the near future. This project seeks to develop approaches that address issues of decoherence and crosstalk by scalable topological superconductors (TSC). Investigation for achieving realistic large-scale quantum computers is required to advance the field of quantum information science. This project will integrate Majorana zero modes (MZMs) into conventional superconducting qubit architectures to advance their application to quantum computing. By having outreach programs towards K-12 students and research experiences for undergraduates, this project will broaden participation in quantum with a focus on underrepresented minorities. The project will build and establish a cross-sector team that will develop advances in controlling the topological nature of materials to advance quantum computing to deliver fault-tolerant qubits and their quantum interconnects. This project seeks (1) to understand and demonstrate the non-local topological nature of the MZMs by detecting the electron teleportation through a pair of MZMs; (2) to establish the basic elements for measuring the parity state in a teleportation-based T-qubit; (3) to explore flux quantization caused by a supercurrent loop that is mediated by the MZMs and set up the basic flux (or pseudo-spin) measurements of a T-qubit; (4) to identify and plan the Phase II research program, and (5) to build a strong team of academic, governmental lab, and industrial partners. Building on recent developments of a new TSC material platform, this project aims to demonstrate the quantum nature and the non-local topological protection of MZMs in the platform as well as build topological qubits that can be integrated into existing quantum computing circuitry. This may lead to greater functionality in superconducting circuits which can significantly advance topological quantum computing. The project deliverable includes a platform supporting topological qubit that is more robust and more scalable. By establishing a nationwide student exchange program and outreach activities to K-12 students, this project seeks to engage students in quantum research and training to broaden participation.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.