Radical Electron-spin-light Interface Dynamics

里德将设计和测试具有未配对电子的分子系统，这些电子连接光和量子力学的自旋态。分子中的电子自旋向上和向下状态具有自旋属性，这对量子信息科学(QIS)中的量子比特(Qubit)很有吸引力。利用分子自旋带来的阶跃变化进展预计将在：存储(更高密度)、计算(更快速度)、通信(更高安全性)和传感(更高灵敏度)方面。对于要在这里使用的分子，必须建立与分子自旋的光界面来初始化、操纵和探测自旋态。氮空位金刚石缺陷引领了量子技术的发展，这种技术利用了基态和激发态能级的光学自旋界面。然而，更高的可调性和更可控的量子比特位置是可以通过化学和分子量子比特实现的。Reid的起点是我以前的工作，在那里我证明了带有未配对电子的发光pi-自由基可以用作双自旋流形，以实现更高效的光电子学。现在有机会在QIS中利用分子光学-自旋界面的未配对电子的光学、自旋和磁性创建全新的技术平台。Reid将设计新的自旋和能量流形，通过精确控制未配对电子在分子结构中的位置。光学自旋系统将通过磁光光谱学进行研究，以提供对新的光物理和自旋物理的独特见解，重点从自旋子能级到分子能级。REID将测试分子自旋系统作为量子传感器，具有对弱磁场的特殊灵敏度，甚至是来自溶液和固态环境中的单个原子核。

REID will design and test molecular systems with unpaired electrons that interface light and quantum-mechanical spin states.The electron spin-up and down states in molecules have spin properties that are attractive for quantum bits (qubits) in quantum information science (QIS). Step-change advancements from exploiting molecular spins are anticipated in: memory (higher density), computing (higher speed), communication (higher security) and sensing (higher sensitivity). For molecules to be used here, the light interface with molecular spins must be established for initialisation, manipulation and probing of spin states. Nitrogen-vacancy diamond defects have led the way for quantum technologies which use an optical-spin interface from ground state and excited-state energy levels. However higher tunability and more controllable qubit locations is achievable by chemistry and molecular qubits.The starting point for REID is my previous work where I demonstrated that luminescent pi-radicals with unpaired electrons are usable as doublet-spin manifolds for more efficient optoelectronics. There is now an opportunity to create altogether new technology platforms in QIS from the optical, spin and magnetic properties of unpaired electrons with a molecular optical-spin interface.Novel spin and energy manifolds will be designed in REID from precise control over positioning of unpaired electrons in molecular structures. The optical-spin systems will be studied by magneto-optical spectroscopy to give unique insights into new photo- and spin physics, with focus from the spin sub-levels to molecular energy levels.REID will test the molecular-spin systems as quantum sensors with exceptional sensitivity of weak magnetic fields, even from individual nuclei in solution and solid-state environments.