权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Electronic phases and transport in quantum matter at strong coupling

强耦合下量子物质中的电子相和输运

基本信息

批准号：
2203411
负责人：
Alex Levchenko
金额：
$ 36万
依托单位：
University of Wisconsin-Madison
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2022
资助国家：
美国
起止时间：
2022-06-01 至 2025-05-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2203411&HistoricalAwards=false
关键词：
Electronic phases transport quantum matter

项目摘要

NONTECHNICAL SUMMARYThis award supports theoretical research on quantum materials where the strong electron-electron interaction leads to unique transport, thermodynamic and magnetic properties. The research agenda addresses both fundamental physics of electronic interactions in complex materials and practical physics of mesoscopic devices relevant for applications in the domain of quantum science with micro and nanostructures.The conversion of heat into electricity in solid state systems is governed by thermoelectric effects. The thermoelectric transport in quantum materials and devices is at the heart of various modern electronics applications. Over the last decade, transport measurements in atomically thin two-dimensional materials, such as graphene composed of a single layer of carbon atoms, provided overwhelming evidence that the flow of electrons in such systems exhibits hydrodynamic behavior that resembles the flow of a viscous fluid. These advances pushed the limits of hydrodynamics, providing new perspectives on old fundamental problems and opening doors for completely new discoveries of emergent physics phenomena. This project is, in part, devoted to new research on thermoelectric resistance of such systems as they are subjected to magnetic fields. The PI will also extend these studies to other forms of low-temperature electronic behavior in solids such as superconductivity, where electrons flow without any resistance, and magnetism, as well as their coexistence. This award also supports the PI's educational and outreach activities. The project places significant emphasis on training graduate and undergraduate students by engaging them in research in a highly collaborative environment with a postdoctoral scholar and colleagues from other groups. The PI will reach out to the public and high-school student audiences through (i) collaboration with the USA Physics Olympiad team to foster new generation of physicists and train high-school students for international scholastic competition and (ii) public education via entertaining Wonders of Physics shows. The PI will also be involved in the scientific coordination of a physics summer school as well as organization of international conferences and workshops.TECHNICAL SUMMARY This award supports theoretical research on topics of strongly correlated electron systems which are at the center of experimental and theoretical attention in the areas of modern condensed-matter physics. The research agenda addresses both fundamental physics of electronic correlations in complex materials as well as practical physics of mesoscopic devices relevant for applications in the domain of quantum science with micro and nanostructures.The project has two main thrusts with several interconnected sub-topics motivated by recent and ongoing experiments. In the first thrust focused on superconductivity, the PI will develop (i) models and mechanisms for experimentally observed manifestations of quantum critical points in thermodynamic and transport properties of multicomponent superconductors; (ii) group theoretical methods for symmetry-constrained classification of superconducting order and methods adapted from the integrable nonlinear equations to construct new crystalline solitonic phases; and (iii) microscopic methods to describe nonequilibrium dynamics of superconductors with unconventional pairing glue at strong coupling. In the second thrust focused on hydrodynamics and topology in quantum matter, the PI will investigate (i) viscous electronics in Dirac and Planckian materials; (ii) electronic magnetohydrodynamics in topological crystals; and (iii) generalized hydrodynamics of superfluid condensates in cold atomic traps. This award also supports the PI's educational and outreach activities. The project places significant emphasis on training graduate and undergraduate students by engaging them in research in a highly collaborative environment with a postdoctoral scholar and colleagues from other groups. The PI will reach out to the public and high-school student audiences through (i) collaboration with the USA Physics Olympiad team to foster new generation of physicists and train high-school students for international scholastic competition and (ii) public education via entertaining Wonders of Physics shows. The PI will also be involved in the scientific coordination of a physics summer school as well as organization of international conferences and workshops.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.

非技术摘要该奖项支持量子材料的理论研究，其中强电子-电子相互作用导致独特的输运、热力学和磁性能。研究议程涉及复杂材料中电子相互作用的基础物理学和与微米和纳米结构量子科学领域应用相关的介观器件的实用物理学。固态系统中热到电的转换受热电效应控制。量子材料和器件中的热电传输是各种现代电子应用的核心。在过去的十年中，原子薄二维材料（例如由单层碳原子组成的石墨烯）中的输运测量提供了压倒性的证据，证明此类系统中的电子流动表现出类似于粘性流体流动的流体动力学行为。这些进步突破了流体动力学的极限，为旧的基本问题提供了新的视角，并为新兴物理现象的全新发现打开了大门。该项目部分致力于对此类系统在磁场作用下的热电阻进行新研究。 PI 还将把这些研究扩展到固体中其他形式的低温电子行为，例如超导性（电子在没有任何阻力的情况下流动）、磁性以及它们的共存。该奖项还支持 PI 的教育和外展活动。该项目非常重视培训研究生和本科生，让他们在与博士后学者和其他小组的同事高度合作的环境中进行研究。 PI 将通过以下方式接触公众和高中生观众：(i) 与美国物理奥林匹克代表队合作，培养新一代物理学家并培训高中生参加国际学术竞赛；(ii) 通过有趣的物理奇观节目进行公共教育。 PI还将参与物理暑期学校的科学协调以及国际会议和研讨会的组织。技术摘要该奖项支持强关联电子系统主题的理论研究，这些主题是现代凝聚态物理领域实验和理论关注的中心。该研究议程既涉及复杂材料中电子关联的基础物理学，也涉及与微米和纳米结构量子科学领域应用相关的介观器件的实用物理学。该项目有两个主要目标，以及由最近和正在进行的实验推动的几个相互关联的子主题。第一个重点是超导，PI 将开发 (i) 用于实验观察多组分超导体热力学和输运特性中量子临界点表现的模型和机制； (ii) 超导序对称约束分类的分组理论方法和根据可积非线性方程改编的方法来构造新的晶体孤子相；（iii）用微观方法来描述强耦合下具有非常规配对胶的超导体的非平衡动力学。在第二个重点是量子物质的流体动力学和拓扑结构中，PI将研究（i）狄拉克和普朗克材料中的粘性电子学； (ii) 拓扑晶体中的电子磁流体动力学； (iii) 冷原子阱中超流体凝聚体的广义流体动力学。该奖项还支持 PI 的教育和外展活动。该项目非常重视培训研究生和本科生，让他们在与博士后学者和其他小组的同事高度合作的环境中进行研究。 PI 将通过以下方式接触公众和高中生观众：(i) 与美国物理奥林匹克代表队合作，培养新一代物理学家并培训高中生参加国际学术竞赛；(ii) 通过有趣的物理奇观节目进行公共教育。 PI 还将参与物理暑期学校的科学协调以及国际会议和研讨会的组织。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。