EAGER: Enabling Quantum Leap: Temperature dependence of optical nonlinearities of monolayer transition-metal dichalcogenides

EAGER：实现量子飞跃：单层过渡金属二硫属化物光学非线性的温度依赖性

• 批准号: 1838497
• 负责人: Hideo Mabuchi
• 金额: $ 30万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-07-15 至 2020-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1838497&HistoricalAwards=false
• 关键词: EAGER; Enabling; Quantum; Leap; Temperature

This project contributes to efforts to develop a new class of optical quantum computing devices that are constructed using solid-state thin film materials and can operate at room temperature. Such new devices have the potential to revolutionize information technology, with applications ranging from cryptographic code-breaking to ultra-secure communication over networks. One of the most exciting features of the solid-state thin film materials investigated in this project is their potential to enable quantum information processing devices that require neither cryogenic nor high-vacuum environments, which add substantial bulk and complexity to prior approaches. This project specifically addresses a set of open questions regarding the room-temperature optical properties of monolayer thin films of the material molybdenum diselenide, the answers to which are crucial for predicting the best achievable performance of practical computing systems. Although bulk crystals of molybdenum diselenide have long been studied, the recent development of methods to prepare and characterize monolayer specimens - just a few atoms thick - have sparked new interest in this material because the properties of these thin films are markedly different from those of bulk samples. Above and beyond its implications for the development of practical quantum information technology, this research contributes to the interdisciplinary training of Ph.D. students and to the development of state-of-the-art educational materials for classroom teaching in emerging areas of quantum engineering.This project focuses on experimental and theoretical studies of the nonlinear optical responses and background optical absorption of monolayer transition-metal dichalcogenides over the temperature range from 4K to 300K. The project leverages recent advances in the use of laser annealing to prepare high quality large-area homogeneous samples of molybdenum diselenide, as well as recent theoretical calculations of Kerr-type nonlinearities associated with transitions among bound exciton states. The project aims to extend prior measurements and calculations to assess decoherence associated with exciton-phonon and exciton-exciton interactions at finite temperatures, and to arrive at quantum optical input-output models of transition metal dichalcogenide-based quantum photonic devices at room temperature with experimentally validated parameters. The project also aims specifically to assess the feasibility of constructing nonlinear photonic resonators based on stacks of multiple transition metal dichalcogenide monolayers, and to predict the best possible performance of such devices for quantum photonic information processing. Broader impacts of the project include interdisciplinary training of graduate students and the development of interdisciplinary material for graduate-level teaching at the intersection of quantum optics and quantum materials.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.

该项目有助于开发一种新的光学量子计算设备，这些计算设备是使用固态薄膜材料构建的，并且可以在室温下运行。 这样的新设备有可能彻底改变信息技术，其应用程序从网络上的密码破坏代码到超安全通信不等。 在该项目中研究的固态薄膜材料的最令人兴奋的特征之一是它们的潜力是使量子信息处理设备既不需要低温或高效率环境，从而为先前的方法增加了实质性和复杂性。 该项目专门讨论了有关材料钼钼单层薄膜的室温光学特性的一系列开放问题，这些膜的单层薄膜薄膜是预测实用计算系统最佳性能的最佳性能至关重要的答案。 尽管长期以来一直研究过丙二钼的大块晶体，但最新的制备和表征单层标本的方法的发展（仅几个原子厚）引发了人们对这种材料的新兴趣，因为这些薄膜的特性与散装样品的特性大不相同。 除了其对实际量子信息技术发展的影响之外，这项研究为博士学位的跨学科培训做出了贡献。在量子工程新兴领域的课堂教学的最先进的教育材料的开发。本项目着重于从4K至300K的温度范围内的非线性光学响应和背景光学介绍的非线性光学响应和背景光吸收。 该项目利用了使用激光退火的最新进展来制备非钼钼的高品质大区域均匀样本，以及针对KERR型非线性的最新理论计算与有限激子之间的过渡相关。 该项目旨在扩展先前的测量和计算，以评估有限温度下与激子 - phonon和Ickiton-exciton相互作用相关的分流，并在室温下，在室温下，在室温下，在室温下，在室温下，在室温下，在基于实验验证的参数的情况下，将基于过渡金属二进制的量子元素量子元素的量子输入模型到达量子光学输入输入模型。 该项目还专门旨在评估基于多个过渡金属二甲基元素单层的堆栈构建非线性光子谐振器的可行性，并预测此类设备的最佳性能进行量子光子信息处理。 该项目的更广泛的影响包括对研究生进行跨学科培训以及在量子光学和量子材料的交集中开发研究生级教学的跨学科材料。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛影响的评估来进行评估的支持，这是值得的。

项目成果

Coherent feedback control of two-dimensional excitons

• DOI: 10.1103/physrevresearch.2.012029
• 发表时间: 2019-02
• 期刊: Physical Review Research
• 影响因子: 4.2
• 作者: C. Rogers;D. Gray;Nate Bogdanowicz;T. Taniguchi;Kenji Watanabe;H. Mabuchi

Low-temperature annihilation rate for quasilocalized excitons in monolayer MoS2

• DOI: 10.1103/physrevb.100.155405
• 发表时间: 2019-04
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Eric Chatterjee;D. Soh;C. Rogers;D. Gray;H. Mabuchi

Laser annealing for radiatively broadened MoSe2 grown by chemical vapor deposition

• DOI: 10.1103/physrevmaterials.2.094003
• 发表时间: 2018-09-17
• 期刊: PHYSICAL REVIEW MATERIALS
• 影响因子: 3.4
• 作者: Rogers, Christopher;Gray, Dodd;Mabuchi, Hideo
• 通讯作者: Mabuchi, Hideo