EAGER: IMPRESS-U: Quantum dynamics in novel chalcogenide materials and devices

该IMPRESS-U项目由NSF、波兰国家科学中心（NCN）、美国国家科学院和海军全球研究办公室（DoD）共同资助。该研究将在杜兰大学，匹兹堡大学（美国），物理研究所，波兰科学院（IFPAN，波兰）和B的多边国际合作伙伴关系中进行。Verkin低温物理与工程研究所（ILTPE）、哈尔科夫理工学院和Karazin哈尔科夫国立大学（乌克兰）。美国部分的合作努力将共同资助NSF OISE/OD，OIA/EPSCoR，MPS/PHY，MPS/DMR，和MPS/OSI。第1部分：非技术说明：该项目将探索的潜力，一个材料的家庭和组合，是新的量子信息科学，铅和锡硫族化物半导体，再加上超导体，作为一个平台，发现量子动力学现象的纳米器件。国际研究团队将调查该材料平台是否为新的量子动力学机制打开大门，为发现新的量子控制模式和提高量子器件性能带来机会。由理论物理学家、实验学家和晶体生长者组成的国际团队将努力精心制作材料，对其进行表征，构建量子设备，并通过在单一和相干的反馈回路过程中工作，从理论上分析和预测这些系统中的新型量子动力学。项目成员将在哈尔科夫最大的两所大学-哈尔科夫理工学院和卡拉津哈尔科夫国立大学-开展教育活动。第二部分：技术描述：该项目将重点研究PbTe、PbSe、SnTe和SnSe等材料，以及它们的三元组合（例如PbSnTe）。 它们在量子科学中的潜力在于其独特的性质：强的自旋-轨道相互作用，大的Lande g因子使它们对自旋自由度的量子控制具有吸引力。高电子迁移率和有效的静电门控是许多量子器件类型的优点，特别是拓扑马约拉纳器件。与诸如Pb、Al、Sn、MoTe的超导体接触的可能性对于超导量子比特是重要的。除此之外，PbSe和PbTe具有非常大的介电常数，可以利用它们进入新的机制-具有淬灭的充电能量，为发现量子动力学效应开辟了新的途径。 该团队将组织一个混合量子研讨会，将国际社会聚集在一起讨论量子科学的主题。该项目还将举办一次会议和一个暑期学校，以进一步将乌克兰研究人员纳入该领域的全球努力。该团队将创建一个关于量子计算材料的在线课程。该奖项反映了NSF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。

This IMPRESS-U project is jointly funded by NSF, National Science Center of Poland (NCN), US National Academy of Sciences, and Office of Naval Research Global (DoD). The research will be performed in a multilateral international partnership that unites Tulane University, University of Pittsburgh (US), Institute of Physics, Polish Academy of Sciences (IFPAN, Poland), and B. Verkin Institute for Low Temperature Physics and Engineering (ILTPE), Kharkiv Polytechnic Institute and Karazin Kharkiv National University (Ukraine). US portion of the collaborative effort will be co-funded by NSF OISE/OD, OIA/EPSCoR, MPS/PHY, MPS/DMR, and MPS/OSI.Part 1: Non-technical description: This project will explore the potential of a materials family and combinations that are new to quantum information science, Pb and Sn chalcogenide semiconductors, coupled to superconductors, as a platform for the discovery of quantum dynamics phenomena in nanoscale devices. The international research team will investigate whether this materials platform unlocks the door to novel quantum dynamics regimes, bringing about opportunities for the discovery of new modalities of quantum control and towards improving quantum device performance. The international team of theoretical physicists, experimentalists and crystal growers will establish an effort to elaborate the materials, characterize them, build quantum devices and analyze and predict theoretically the novel quantum dynamics in these systems, by working in a single and coherent feedback loop process. Project members will engage in educational activities at two of the Kharkiv largest universities – Kharkiv Polytechnic Institute and Karazin Kharkiv National University. Cooperation with the fledgling quantum industry for technology transfer and workforce training will be explored; the team is in discussion with several global quantum computing companies.Part 2: Technical description:The project will focus on materials such as PbTe, PbSe, SnTe and SnSe, as well as their ternary combinations (e.g. PbSnTe). Their potential for quantum science is in their unique properties: strong spin-orbit interaction, large Lande g-factors make them attractive for quantum control of the spin degree of freedom. High electron mobilities and efficient electrostatic gating are advantages for a host of quantum device types, in particular topological Majorana devices. The possibility to make contacts to superconductors such as Pb, Al, Sn, MoTe, is important for superconducting qubits. Beyond these, PbSe and PbTe possess an extraordinarily large dielectric constant which can be leveraged to enter new regimes – with quenched charging energy, opening new pathways for discovery of quantum dynamical effects. The team will organize a hybrid quantum seminar for bringing together the international community around the topic of quantum science. The project will also conduct a conference and a summer school to further integrate the Ukrainian researchers into the global efforts in the field. The team will create an online course on materials for quantum computing. Outreach to the local communities including high school and public is planned.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.