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.

量子计算或先进电子学等未来技术的基础是获得对具有大量相互作用自由度的量子力学系统的控制和理解，高精度实验激光器、光学腔和冷原子已成为演示这种控制的理想环境。并揭示可利用的原理 该项目涉及使用理论物理工具来模拟这些实验，寻求组织原理，探索新现象，并促进未来的进步。对自然世界的控制，这可能这些科学项目不仅解决了过渡金属氧化物中奇异的“奇怪金属”行为等长期存在的挑战，还解决了耗散工程中的非平衡和新兴的许多物体物理的新发展。该研究围绕三个相互关联的主题进行：强相关多体系统中的传输、开放和非平衡量子系统的控制以及一维量子系统的建模。超冷原子模拟“高温超导体”中电子行为的建模实验。通过这种建模，希望可以限制高温超导背后的机制，从而为室温超导提供进展。第二个方向涉及使用量子信息界控制量子多体系统的动力来自围绕原子、分子和光学系统平衡的持续实验挑战。第三个方向涉及产生新的数值算法来探索连续一维的行为。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。

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.