Mario Ruben

june, 2022

28jun3:30 pm4:30 pmMario RubenKIT Karlsruhe, Germany3:30 pm - 4:30 pm KST

Event Details

Mario Ruben

Academic Affiliation: INT, IQMT, Karlsruhe Institute of Technology (KIT) & ISIS, CESQ, University of Strasbourg

Talk title: Quantum Computing with Molecules


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 isotopologue chemistry, bottom-up self-assembly and top-down lithography techniques. The control of the Hilbert space of the molecular quantum magnets on conducting surfaces/electrodes will be shown and persistence of magnetic properties under confinement in Supramolecular Quantum Devices (SMQD) will be proven. The quantum behaviour (e.g.. superposition) 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 Moreover, we will show that that the components of SMQDs as the Quantum Magnet14 and the graphene sheets15 can be made from CO2 guaranteeing a negative Carbon footprint and sustainability of the molecular approach towards QC.


[1]            S. Kyatskaya et. al. J. Am. Chem. Soc. 2009, 131, 15143-15151.

[2]            M. Urdampilleta et al. Nature Mater. 2011, 10, 502-506.

[3]            J. Schwöbel et. al. Nature Comms. 2012, 3, 953-956.

[4]            R. Vincent et al. Nature 2012, 488, 357-360.

[5]            M. Ganzhorn et al. Nature Nano. 2013, 8, 165–169.

[6]            M. Ruben et. al. Nature Nano. 2013, 8, 377–389.

[7]            S. Wagner et. al. Nature Nano. 2013, 8, 575–579.

[8]            S. Thiele, et al. Science 2014, 344, 1135-1138.

[9]            M. Ganzhorn, et. al. Nature Comms 2016, 7, 11443.

[10]          C. Godfrin et al. PRL 2017, 119, 187702 (perspective article by A. Morello Nature Nano 2018, 13, 9-10).

[11]          H. Biard et. al. Nature Comms 2021, 12, 4443.

[12]          S. Kuppusamy et. al. Nature Comms 2021, 12, 2152.

[13]          D. Serrano et al. Nature 2022, 603, 241.

[14]          E. Pineda-Moreno et. al. Chem. Sci. 2017, 8, 1178-1185.

[15]          C. Molin-Jiron et. al. ChemSusChem. 2019, 12, 3509 –3514.


Recent Reviews:


“Molecular Spin Qudits for Quantum Algorithms.” 

  1. 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.“

  1. Wernsdorfer, M. Ruben

Adv. Mat. 2019, 31, 1806687.


(Tuesday) 3:30 pm - 4:30 pm

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