QII-TAQS: Chip-Scale Quantum Emulators Based on Polaritonic Lattices

QII-TAQS：基于极化晶格的芯片级量子模拟器

• 批准号: 1936351
• 负责人: Vinod Menon
• 金额: $ 194.82万
• 依托单位: CUNY City College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1936351&HistoricalAwards=false
• 关键词: QII; TAQS; Chip; Scale; Quantum

Quantum simulators (emulators) are used to simulate computationally complex and experimentally inaccessible problems using a controllable quantum system. Such a simulator is a task-specific device that mimics the physical behavior of a system of interest that is computationally hard to model or experimentally difficult to realize. Different platforms for simulators, such as cold atoms in an optical lattice, quantum nanostructures, superconducting circuits, and defects in diamond, have been proposed and some partially realized. Under this research program the team will take a distinct approach based on half-light half-matter quasiparticles (a.k.a. exciton-polaritons) as a "programmable quantum matter" platform to realize chip-scale quantum emulators. Specifically, the researchers will use organic molecular systems combined with light-trapping structures to simulate systems ranging from magnetism to electron transport in quasicrystals. This architecture, which relies on the latest advances in photonics and solid-states physics, can also be leveraged to solve diverse computationally intractable problems from protein folding and neural networks to the dynamics of financial markets. The program will help train a cadre of graduate and undergraduate students and postdoctoral associates in the broad area of quantum technologies. The program will also benefit from strong international partnerships. Outreach efforts will focus on developing a high school curriculum to introduce concepts of quantum technologies and public events targeted at making the public aware of quantum technologies. Quantum emulators leverage the control of interacting degrees of freedom to simulate complex quantum phases of matter arising in many-body systems that are outside the reach of classical computers. Through this research program the team aims to develop a chip-scale quantum emulator platform based on lattices of exciton-polaritons (strongly coupled half-light half-matter quasiparticles). This platform for analog quantum emulation will exploit exciton-polariton condensates in lattices, an alternative to more widespread atom-lattice approaches. Owing to their hybrid character, the photon component lends the system small mass, coherence, and ability to engineer the potential energy landscape, while the matter component provides the necessary nonlinearity and interactions that can be controlled on demand. The research program will use excitons in organic molecular systems as the material component, which presents unique advantages such as elevated operational temperature, tunability, and the possibility to engineer the optical properties through molecular design. Through careful engineering of the photonic band structure, polariton lattices with complex band-structures will be realized. Additionally, exciton polariton condensates, being intrinsically a driven dissipative system, present an ideal platform to emulate and uncover out-of-equilibrium quantum orders. Specific program goals include the demonstration of exciton polariton condensate lattices with controlled interactions to simulate: (i) ferromagnetism and anti-ferromagnetism in a one-dimensional polariton lattice, (ii) disorder protected non-equilibrium quantum orders in quasiperiodic lattices, and (iii) topologically protected states in two-dimensional lattices with engineered chiral symmetries.This project is jointly funded by the Quantum Leap Big Idea Program and the Office of International Science and Engineering.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.

量子模拟器（仿真器）用于使用可控量子系统模拟计算复杂和实验无法实现的问题。这种模拟器是一种特定于任务的设备，它模拟在计算上难以建模或在实验上难以实现的感兴趣系统的物理行为。不同的模拟器平台，如冷原子在光学晶格，量子纳米结构，超导电路，和金刚石中的缺陷，已经提出和部分实现。在这项研究计划中，该团队将采取一种独特的方法，基于半光半物质准粒子（也称为准粒子）。激子-极化激元）作为“可编程量子物质”平台来实现芯片级量子仿真器。具体来说，研究人员将使用有机分子系统结合光捕获结构来模拟从准晶体中的磁性到电子传输的系统。这种架构依赖于光子学和固态物理学的最新进展，也可以用来解决从蛋白质折叠和神经网络到金融市场动态的各种计算难题。该计划将帮助培养一批研究生和本科生以及量子技术广泛领域的博士后助理。该计划还将受益于强大的国际伙伴关系。外联工作将侧重于制定高中课程，介绍量子技术的概念和旨在使公众了解量子技术的公共活动。 量子仿真器利用相互作用自由度的控制来模拟多体系统中出现的复杂的物质量子相，这些系统超出了经典计算机的范围。通过这项研究计划，该团队的目标是开发一个基于激子-极化激元晶格（强耦合半光半物质准粒子）的芯片级量子仿真器平台。这个模拟量子仿真平台将利用晶格中的激子-极化激元凝聚，这是更广泛的原子-晶格方法的替代方案。由于它们的混合特性，光子成分赋予系统小质量，相干性和设计势能景观的能力，而物质成分提供了必要的非线性和相互作用，可以根据需要进行控制。该研究计划将使用有机分子系统中的激子作为材料组分，其具有独特的优势，例如提高操作温度，可调谐性以及通过分子设计设计工程光学特性的可能性。 通过对光子带结构的精心设计，将实现具有复杂带结构的极化激元晶格。此外，激子极化激元凝聚，本质上是一个受驱动的耗散系统，提供了一个理想的平台，模拟和揭示出的平衡量子秩序。具体的计划目标包括演示激子极化激元凝聚晶格与受控的相互作用，以模拟：（i）一维极化激元晶格中的铁磁性和反铁磁性，（ii）准周期晶格中无序保护的非平衡量子序，以及（iii）两个拓扑保护国家-具有工程手性对称性的三维晶格。该项目由量子飞跃大创意计划和国际科学与工程办公室共同资助。该奖项反映了NSF的法定使命，并已被认为是值得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的支持。

项目成果

Lyapunov exponents and entanglement entropy transition on the noncommutative hyperbolic plane

非交换双曲平面上的李亚普诺夫指数和纠缠熵变

• DOI: 10.21468/scipostphyscore.3.1.003
• 发表时间: 2020
• 期刊: SciPost Physics Core
• 影响因子: 3.6
• 作者: Ganeshan, Sriram;Polychronakos, Alexios P.
• 通讯作者: Polychronakos, Alexios P.

Measurement and Feedback Driven Entanglement Transition in the Probabilistic Control of Chaos

混沌概率控制中测量和反馈驱动的纠缠转变

• DOI: 10.1103/physrevlett.131.060403
• 发表时间: 2023
• 期刊: Physical Review Letters
• 影响因子: 8.6
• 作者: Iadecola, Thomas;Ganeshan, Sriram;Pixley, J. H.;Wilson, Justin H.
• 通讯作者: Wilson, Justin H.