Theoretical AMO Studies of Non-Equilibrium and Emergent Many-Body Quantum Physics

非平衡和新兴多体量子物理的理论 AMO 研究

• 批准号: 2110250
• 负责人: Erich Mueller
• 金额: $ 24万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2110250&HistoricalAwards=false
• 关键词: Theoretical; AMO; Studies; Non; Equilibrium

Future technology, such as quantum computation or advanced electronics, is predicated on gaining control and understanding of quantum mechanical systems with large numbers of interacting degrees of freedom. High precision experiments involving lasers, optical cavities and cold atoms have become the ideal setting to demonstrate this control and uncover the principles which can be exploited. This project involves using the tools of theoretical physics to model these experiments, seek organizing principles, explore novel phenomena, and enable future progress. The intellectual merit of this research lies in developing a deeper understanding and better control of the natural world, which may have associated broader impacts in quantum technology. The scientific projects address both long-standing challenges such as exotic "strange metal" behavior in transition metal oxides as well as novel developments in dissipation engineering. This project will model non-equilibrium and emergent many body physics in ultracold atoms and Rydberg polaritons. The research is organized around three interconnected themes: transport in strongly correlated many-body systems, control of open and out-of-equilibrium quantum systems, and modeling 1D quantum systems. The first direction involves modeling experiments in which ultracold atoms emulate the behavior of electrons in “high temperature superconductors.” Through this modeling, it is hoped the mechanism behind high temperature superconductivity may be constrained, providing progress towards room temperature superconductivity. The second direction involves using ideas developed in the quantum information community to control quantum many-body systems. It is motivated by ongoing experimental challenges around equilibration in atomic, molecular, and optical systems. The third direction involves producing new numerical algorithms for exploring the behavior of continuum one-dimensional systems. This will be key to answering fundamental questions about equilibration, and modeling experiments.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.

预计未来的技术，例如量子计算或高级电子产品，可以获得对具有大量相互作用自由度的量子机械系统的控制和理解。高精度实验涉及激光，光腔和冷原子已成为证明这种控制并揭示可以探索的原理的理想环境。该项目涉及使用理论物理学的工具来对这些实验进行建模，寻求组织原理，探索新现象并实现未来的进步。这项研究的智力优点在于，建立更深入的理解和更好地控制自然世界，这可能与量子技术的广播公司相关联。科学项目应对长期以来的挑战，例如过渡金属氧化物中的异国情调的“奇怪的金属”行为以及耗散工程的新发展。该项目将模拟超低原子和瑞德伯格极化子中许多身体物理的非平衡性和新兴人体物理。这项研究围绕三个相互联系的主题进行组织：在密切相关的多体系统中的运输，对开放和平衡量子系统的控制，以及建模1D量子系统。第一个方向涉及建模实验，其中超电原子模仿“高温超导体”中电子的行为。通过这种建模，希望可以限制高温超导性背后的机制，从而为室温超导性提供进展。第二个方向涉及使用量子信息社区中发展的思想来控制量子多体系统。它是由于原子，分子和光学系统中均衡的持续实验挑战所激发的。第三个方向涉及生成新的数值算法，以探索继续一维系统的行为。这将是回答有关平衡和建模实验的基本问题的关键。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响标准，被视为通过评估而被视为珍贵的支持。

项目成果

Rotating Bose gas dynamically entering the lowest Landau level

旋转 Bose 气体动态进入最低的朗道水平

• DOI: 10.1103/physreva.105.023310
• 发表时间: 2022
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Sharma, Vaibhav;Mueller, Erich J.
• 通讯作者: Mueller, Erich J.

Role of conservation laws in the density matrix renormalization group

• DOI: 10.1103/physrevb.106.235126
• 发表时间: 2022-07
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Thomas G. Kiely;E. Mueller

Emission of particles from a parametrically driven condensate in a one-dimensional lattice

一维晶格中参数驱动的凝聚态粒子的发射

• DOI: 10.1103/physreva.104.033308
• 发表时间: 2021
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Lai, L. Q.;Yu, Y. B.;Mueller, Erich J.
• 通讯作者: Mueller, Erich J.

Resonant enhancement of particle emission from a parametrically driven condensate in a one-dimensional lattice

一维晶格中参数驱动凝聚态粒子发射的共振增强

• DOI: 10.1103/physreva.106.033302
• 发表时间: 2022
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Lai, L. Q.;Yu, Y. B.;Mueller, Erich J.
• 通讯作者: Mueller, Erich J.

Strong increase in ultrasound attenuation below Tc in Sr2RuO4 : Possible evidence for domains

Sr2RuO4 中 Tc 以下的超声衰减大幅增加：域的可能证据

• DOI: 10.1103/physrevb.106.024520
• 发表时间: 2022
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Ghosh, Sayak;Kiely, Thomas G.;Shekhter, Arkady;Jerzembeck, F.;Kikugawa, N.;Sokolov, Dmitry A.;Mackenzie, A. P.;Ramshaw, B. J.
• 通讯作者: Ramshaw, B. J.