MolQif
Molecular spin manipulation for quantum information
Project manager
Talal Mallah, Université Paris-Saclay
Overview
The MolQIF project aims to explore the potential of paramagnetic complexes (PCs) to act as robust, solid-state, spin-based quantum bits (qubits) for quantum information processing (QIP).
Keywords: Molecules; paramagnetic complexes; solid-state spin qubits; optical and microwave addressing; one- and two-qubit quantum gates; lanthanides; transition metals
In a nutshell
The MolQif project exploits the flexibility and versatility of transition metal and lanthanide complexes to design and prepare molecular crystals composed of molecules with targeted electron and nuclear spin architectures, suitable for the demonstration of quantum logic gates, optical quantum storage and telecommunications. Theoretical chemistry, optical and electron paramagnetic resonance spectroscopy will be used to assess the potential of molecules for quantum information processing, and to guide molecular design to select the best candidates whose properties will be investigated.
The project also investigates the coherence properties of molecules and molecular crystals, first as large ensembles (in frozen solution or slightly diluted solid state), then as small ensembles. To this end, molecules are integrated into spin-free arrays or grafted onto the superconducting resonator for microwave spectroscopy, or isolated in single crystals for optical manipulation.
Finally, to assess the suitability of molecules as a platform for quantum computing, one- and two-qubit quantum logic gates will be demonstrated on single-molecule mononuclear and binuclear paramagnetic complexes taking advantage of intramolecular electron-nuclear spin interactions, using single-photon detection in the microwave range.
Challenges
- Demonstrate that (magnetic) molecules can be used as spin-based quantum bit platforms (electronic and nuclear) to implement one-, two- or three-qubit quantum logic gates as a model for quantum computers.
Tasks
- WP1: Design of PCs and shaping in the solid-state
- WP2: Modeling the properties of the molecules
- WP3: Characterization of the PCs by cw-and pulsed EPR
- WP4:Optical addressing and read-out of lanthanide molecules
- WP5: Microwave addressing of the electro-nuclear spins in high-dilution samples or single-molecule setups using superconducting circuits
Consortium
- Institut de chimie de Strasbourg (ICS, CNRS / Université de Strasbourg)
- Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO, CNRS / Université Paris-Saclay)
- Institut de Recherche de Chimie Paris (IRCP, CNRS / Chimie ParisTech)
- Institut des Sciences Chimiques de Rennes (ISCR, CNRS / Université de Rennes)
- Institut de science et d’ingénierie supramoléculaires (ISIS, CNRS / Université de Strasbourg)
- Institut Matériaux Microélectronique Nanosciences de Provence (IM2NP, CNRS / Université Aix-Marseille)
- Institut Néel, CNRS / Université Grenoble Alpes)
- Laboratoire de Chimie et Physique Quantique (LCPQ), CNRS / Université de Toulouse)
- Laboratoire de Chimie Moléculaire (LCM, CNRS / École Polytechnique)
- Laboratoire de Physique de la Matière Condensée (PMC, CNRS / École Polytechnique)
- Laboratoire de Physique ENS de Lyon (LPENSL, CNRS / ENS de Lyon / Université́ Claude Bernard Lyon 1)
- Laboratoire National des Champs Magnétiques Intenses (LNCMI, CNRS / Université Grenoble Alpes)
- Service de Physique de l’État Condensé (SPEC, CEA / CNRS / Université Paris-Saclay)
- Systèmes Moléculaires et nano Matériaux pour l’Energie et la Santé (SyMMES, CEA / CNRS / Université Grenoble Alpes)