权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Sensors of Relativistic Phenomena Based on Solid-State Quantum Platforms

基于固态量子平台的相对论现象传感器

基本信息

批准号：
1912480
负责人：
Swati Singh
金额：
$ 24.55万
依托单位：
University of Delaware
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：
2019-08-01 至 2023-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1912480&HistoricalAwards=false
关键词：
Sensors Relativistic Phenomena Based Solid

项目摘要

This research aims to identify and explore the promise and limitations of using emerging quantum platforms as precise detectors of various astrophysical phenomena such as continuous gravitational waves and scalar dark matter. Controllable, yet fragile quantum systems can be perturbed significantly by weak forces, thus operating as detectors of tiny forces. Both gravitational waves from distant neutron stars or dark matter in our solar neighborhood would produce weak forces due to stretching and squeezing objects by distances much smaller than the size of the atomic nucleus. This research will study the possibility of detecting these forces by studying their action on state-of-the-art quantum devices. It will also investigate the technical and fundamental limitations on using various quantum objects to detect weak forces.Both of the relativistic phenomena mentioned above produce tidal forces when acting on extended solid objects. Such forces will be resonantly amplified and can possibly be detected in optomechanical setups, for instance. Along with exploring the viability of various detection schemes with respect to technical and fundamental quantum noise, this program will also explore quantum measurement and feedback-based sensing improvements. This research spans a wide range of experimental systems: superfluid helium acoustic devices, micron sized SiN membranes, and photonic crystal cavities. This theoretical work consists of a combined analytical and computational approach along with strong collaborations with both particle theorists and quantum experimentalists. This project is jointly funded by the Theoretical Atomic, Molecular and Optical Physics Program, by the Established Program to Stimulate Competitive Research (EPSCoR), and by the Condensed Matter and Materials Theory Program in the Division of Materials Research.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.

这项研究旨在确定和探索使用新兴量子平台作为各种天体物理现象（如连续引力波和标量暗物质）的精确探测器的前景和局限性。可控但脆弱的量子系统可以被弱力显著扰动，从而作为微小力的探测器。来自遥远中子星或太阳附近暗物质的引力波，都会因远小于原子核大小的物体的拉伸和挤压而产生微弱的力。这项研究将通过研究它们对最先进的量子设备的作用来研究检测这些力的可能性。本课程亦会探讨使用不同量子物体探测弱力的技术及基本限制。上述两种相对论现象在作用于扩展固体物体时均会产生潮汐力。这样的力将被共振放大，并且可能在例如光学机械设置中被检测到。沿着探索各种检测方案在技术和基本量子噪声方面的可行性，该计划还将探索量子测量和基于反馈的传感改进。这项研究涵盖了广泛的实验系统：超流氦声学器件，微米尺寸的SiN膜，光子晶体腔。这项理论工作包括结合分析和计算的方法，沿着与粒子理论家和量子实验学家的密切合作。该项目由理论原子、分子和光学物理计划、激励竞争性研究的既定计划（EPSCoR）和材料研究部的凝聚态物质和材料理论计划共同资助。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。