IN²UB INTERNATIONAL RESEARCH SEMINARS
Quantum Computing with Molecules
By, Prof. Mario Ruben, INT, IQMT, Karlsruhe Institute of Technology (KIT), Karlsruhe/D and ISIS, CESQ, University of Strasbourg, Strasbourg/F
Date and Venue: September 28th, 2023 at 16h – Aula Magna Enric Casassas (Faculty of Chemistry)
(Chaired by Prof. Guillem Aromí, IN²UB and Faculty of Chemistry)
Abstract: Metal complexes will be proposed to acting as active quantum units for Quantum Computing (QC). We report on the implementation of metal complexes into nanometre-sized (single-)molecular spintronic devices by a combination of bottom-up self-assembly and top-down lithography techniques. The controlled generation of magnetic molecular nanostructures on conducting surfaces/electrodes will be shown and persistence of their magnetic properties under confinement in Supramolecular Quantum Devices (SMQD) will be proven. The quantum behaviour (e.g.. superposition, entanglement) of the metal complexes will be addressed at the single molecule level1-13 to finally implement a quantum algorithm on a TbPc2 Qudit performing quantum computing operations.10
Figure 1 Artistic representation of a Molecular Spin Transistor based on a TbPc2 complex acting as a molecular Spin Qudit.8
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“Molecular Spin Qudits for Quantum Algorithms.” Moreno-Pineda, C. Godfrin, F. Balestro, W. Wernsdorfer, M. Ruben. Chem. Soc. Rev. 2018, 47, 501.
“Synthetic Engineering of the Hilbert Space of Molecular Qudits: Isotopoloque Chemistry.“ W. Wernsdorfer, M. Ruben. Adv. Mat. 2019, 31, 1806687.