Far from Equilibrium and Quantum Phenomena in Strongly Correlated Systems

强相关系统中远离平衡和量子现象

• 批准号: 1609829
• 负责人: Emil Yuzbashyan
• 金额: $ 30万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1609829&HistoricalAwards=false
• 关键词: Far; Equilibrium; Quantum; Phenomena; Strongly

NONTECHNICAL SUMMARYThis award supports theoretical research and education in non-equilibrium physics. Thanks to major advances in technology, new states of matter can be accessed experimentally by driving a system of many interacting particles far from their unperturbed equilibrium state. For example, researchers are now able to stir up electrons in a superconducting metal with an intense ultrashort pulse of electromagnetic radiation while fully maintaining the overall superconductivity of the material. The conventional tools of statistical physics do not apply in such non-equilibrium conditions. The ultimate goal of this project is to develop reliable theories of these phenomena, and to predict and describe new states of far-from-equilibrium quantum matter that can potentially be harnessed in novel quantum devices. The implementation of the research plan will at the same time foster training and education of graduate students and postdocs. Integral parts of this project are the proposed graduate course on non-equilibrium many-body physics, and the development of interactive methods for teaching non-science majors, which will be implemented in collaboration with the PI's colleagues in science pedagogy at Rutgers.TECHNICAL SUMMARYThis award supports theoretical research and education in non-equilibrium physics. The past decade has witnessed unprecedented experimental access to coherent dynamics of many-body interacting systems. Far-from-equilibrium superconductivity and superfluidity is an important separate subfield that has been growing rapidly since the PI's early influential work. Nevertheless, a universal description and understanding of the origin of non-equilibrium phases commonly seen in different superfluids is still lacking. This project aims specifically at developing both. The PI also plans to explore non-equilibrium topological superfluids that are expected to have much richer topological properties than in equilibrium, as well as non-equilibrium phases and instabilities in the dynamics of multicomponent superfluids. A further goal of this project is to analyze how the dynamics change as we gradually go from quantum to classical mechanics using the central spin model as an example, and to study the driven-dissipative dynamics of ensembles of two-level atoms that are strongly coupled through a cavity mode. The last research component of this project addresses mesoscopic and nanoscale properties of quantum integrable systems. Random Matrix Theory (RMT) enjoyed a great deal of success as a description of many such universal properties in non-integrable complex systems. The PI plans to develop a counterpart of RMT for quantum integrable systems starting from basic principles. In a separate study, the PI will apply this newly created integrable matrix theory to the problem of quantum irreversibility.The implementation of the research plan will at the same time foster training and education of graduate students and postdocs. Integral parts of this project are the proposed graduate course on non-equilibrium many-body physics, and the development of interactive methods for teaching non-science majors, which will be implemented in collaboration with the PI's colleagues in science pedagogy at Rutgers.

非技术总结该奖项支持非平衡物理的理论研究和教育。由于技术的重大进步，可以通过实验获得新的物质状态，方法是将许多相互作用的粒子系统驱动到远离其未受扰动的平衡状态。例如，研究人员现在能够用强烈的超短电磁辐射脉冲在超导金属中搅动电子，同时完全保持材料的整体超导电性。统计物理的常规工具不适用于这种非平衡条件。该项目的最终目标是发展这些现象的可靠理论，并预测和描述可能被用于新型量子设备的远离平衡的量子物质的新状态。研究计划的实施将同时促进对研究生和博士后的培训和教育。该项目的组成部分是拟议的非平衡多体物理研究生课程，以及为非科学专业的教学开发互动方法，该课程将与罗杰斯国际科学教育学的同事合作实施。技术总结该奖项支持非平衡物理的理论研究和教育。过去的十年见证了对多体相互作用系统相干动力学的史无前例的实验研究。远离平衡的超导电性和超流性是一个重要的独立子场，自PI早期有影响力的工作以来一直在迅速发展。然而，对不同超流体中常见的非平衡相的起源仍然缺乏普遍的描述和理解。这个项目的目标是同时发展这两个方面。PI还计划探索非平衡拓扑超流体，这些超流体有望具有比平衡状态更丰富的拓扑性质，以及多组分超流体动力学中的非平衡相和不稳定性。这个项目的另一个目标是以中心自旋模型为例，分析动力学如何随着我们从量子力学逐渐过渡到经典力学而变化，并研究通过腔模强耦合的二能级原子系综的驱动耗散动力学。本项目的最后一项研究内容是量子可积系统的介观和纳米尺度的性质。随机矩阵理论(RMT)作为对不可积复杂系统中许多普遍性质的描述而获得了极大的成功。PI计划从基本原理出发，开发用于量子可积系统的RMT的对应物。在另一项研究中，PI将把这一新创建的可积矩阵理论应用于量子不可逆性问题。研究计划的实施将同时培养研究生和博士后的培训和教育。该项目的组成部分是拟议的非平衡多体物理研究生课程，以及为非科学专业的教学开发互动方法，这将与罗格斯大学国际科学教育学的同事合作实施。