QLC: EAGER: Toward Magnetic Selectivity with Molecular Clock Qubits

QLC：EAGER：利用分子时钟量子位实现磁选择性

基本信息

批准号：
1836537
负责人：
Joseph Zadrozny
金额：
$ 25万
依托单位：
Colorado State 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：
2018-09-01 至 2020-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1836537&HistoricalAwards=false
关键词：
QLC EAGER Toward Magnetic Selectivity

项目摘要

In this project, funded by the Chemical Structure, Dynamic & Mechanism B Program of the Chemistry Division, Professor Joseph M. Zadrozny of the Department of Chemistry at Colorado State University is developing new classes of metal complexes for the detection of physiological magnetic phenomena. These complexes are designed as molecular analogues to spin-based quantum bits (qubits) of a quantum computer. Molecular qubits are extremely sensitive to their local environment, a sensitivity that is to be suppressed for quantum computing applications. The proposed work will embark in a different direction by asking the fundamental question: Can the inherent sensitivity of molecular qubits be embraced to create new bioimaging sensors? Toward such application, it is desirable to focus the extreme sensitivity of a qubit toward specific environmental factors. This program will take the first fundamental steps toward that vision of selective sensitivity. Outreach activities as part of this project include the creation of a learning kit to instruct students at the K-12 level on fundamental magnetic phenomena. A nascent type of molecular qubits are the so-called clock qubits, which possess long spin-lattice and spin-spin relaxation times that result from a strong insensitivity to magnetic phenomena. This insensitivity stands as a stark counterpoint to conventional molecular qubits, which possess relaxation times that are strongly affected by local magnetism. The relative sensitivity of the two classes of qubits indicates an inherent tunability of susceptibility to nearby magnetism, potentially enabling relaxation-time-based sensing probes to be targeted toward only specific classes of environmental spins, e.g. those that occur in different types of biomolecules. In this work, a model system based on a V(IV) molecule qubit will explore fundamental questions at the heart of clock qubit behavior: (1) How do these systems interact with different classes of environmental nuclear spins? (2) How do these clock qubits interact with different classes of proximate electronic spins? Finally, (3) Is this interaction at all favored for certain classes of spins over others, and what are the factors that govern that favor? Each of these fundamental questions underlies the eventual development of targeted sensitivity toward specific types of spin-bearing biologically relevant molecules.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.

在该项目中，由化学结构，动态和机制B计划资助，科罗拉多州立大学化学系的Joseph M. Zadrozny教授正在开发新的金属配合物，以检测生理磁性现象。这些复合物被设计为量子计算机的分子类似物。分子量子位对其本地环境极为敏感，这是量子计算应用的敏感性。拟议的工作将通过提出基本问题来朝着不同的方向发展：可以拥抱分子Qubit的固有灵敏度以创建新的生物成像传感器吗？朝向这种应用，希望将量子位的极端敏感性集中在特定的环境因素上。该计划将采取第一个基本步骤，朝着选择性灵敏度的愿景迈出。作为该项目的一部分，外展活动包括创建学习套件，以指导学生在K-12级别的基本磁现象。一种新生的分子Qubits是所谓的时钟Qubt，其具有长的自旋晶格和自旋旋转弛豫时间，这是由于对磁现象的强烈不敏感而导致的。这种不敏感的是与常规分子Qub的鲜明对立，它具有受局部磁性强烈影响的松弛时间。两类量子位的相对灵敏度表明对附近磁性的敏感性的固有可调性，有可能使基于松弛时间的传感探针仅针对特定类别的环境旋转，例如那些发生在不同类型的生物分子中。在这项工作中，基于V（IV）分子量子的模型系统将探讨时钟量子量表行为核心的基本问题：（1）这些系统如何与不同类别的环境核自旋相互作用？（2）这些时钟量子位如何与不同类别的接近电子自旋相互作用？最后，（3）这种相互作用对某些类别的旋转而不是其他旋转而受到影响？这些基本问题中的每一个都构成了对特定类型的旋转生物学相关分子的有针对性敏感性的最终发展。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛影响的评估标准来评估值得支持的。