HEИндивидуална стипендия2022–2024

QMOLESR · Addressing molecular spin qubits by ESR-STM

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период: 2022-09-01 → 2024-08-31
Финансиране от ЕС: 165 313 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Молекулярните спинови кубити се изследват чрез специален микроскоп, за да се управляват отделни атоми и молекули върху метални повърхности. Това помага за развитието на квантовата обработка на информацията и създаването на нови методи за локално магнитно сензиране.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Addressing molecular spin qubits by ESR-STM

The ultimate goal of the project is to develop methods to prepare, manipulate and read the state of molecular spin qubits and explore the fundamental aspects of quantum information processing and quantum sensing. The entire project is based on the commissioning and use of Electron Spin Resonance Scanning Tunneling Microscopy (ESR-STM), a tool that enables the active spin manipulation. This technique combines the extreme energy resolution of traditional ESR with the spatial resolution, i.e. at the atomic level, of STM. It thus allows coherent manipulation of individual atomic/molecular spin qubits on surfaces. With this background, the long-term goal of the project is to extend the use of ESR-STM and address spin qubits in an arbitrary environment, e.g. a metal surface. In fact, the majority of ESR-STM studies available in literature are restricted to individual magnetic atoms laying on thin films of MgO grown on Ag(100). The insulating layer of MgO seems to be an essential ingredient to obtain addressable and functional atomic spin qubits. 1) MgO acts as an active material mediating the coupling between microwave radiation and atomic spin qubits. 2) MgO establishes magnetic anisotropy, through the ligand field, providing atoms with the electronic structure such that they can act as spin qubits. 3) It decouples magnetic atoms from the metallic substrate and improves the qubit behaviour. The key idea to achieve the goal of the project and make robust spin qubits is to use metal-organic complexes whose organic structure is designed in such a way to play the role of the MgO layer. The availability of ESR-STM active molecules will open the possibility of realizing new local and non-destructive magnetic sensing methods.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The emergence of ESR-STM has recently opened new perspectives on the coherent manipulation of individual spin qubits. However, to date ESR-STM experiments are essentially focused on individual magnetic atoms deposited on MgO/Ag(100). The insulating layer of MgO seems to be an essential ingredient to obtain addressable and functional single atom qubits, e.g. to fix the spin along certain directions and enable ways for its manipulation. The aim of this project is to go beyond the current restriction of ESR-STM on individual atomic qubits on MgO layers and expand its usage towards robust qubits in other environments. This will be done by using metallo-organic complexes whose organic structure is designed in such a way to play the role of the MgO layer. ESR will be performed on individual magnetic molecules and their potential as molecular spin qubits in contact with metals will be probed. The overall methodology of the project is divided into three main objectives: (1) demonstrate ESR-STM on magnetic molecules; (2) demonstrate ESR-STM on magnetic molecules in direct contact with a metallic substrate and use molecules as magnetic sensors; (3) protection of spin coherence by superconductivity. The impact of the project goes beyond the purely scientific interest and it extends to the industrial sectors of technology and telecommunications. This is because it actually opens the possibility of implementing spintronic devices aimed at storage and manipulation of quantum information in which the individual qubits can be concretely addressed thanks to some type of electrode. Moreover, the coherent control of quantum states is currently under large demand in Europe. In this regard, the highly specialized expertise acquired by the researcher thanks to this project will clearly be an added value in the preparation of his future career. In conjunction with its scientific aim, QMOLESR is designed to train an excellent, independent researcher who will develop his research career.

Оригинален текст от CORDIS (на английски).

Участници

ASOCIACION CENTRO DE INVESTIGACION COOPERATIVA EN NANOCIENCIAS CIC NANOGUNE · San SebastianКоординаторИспания