Colloquium by Mario Ruben
Tuesday, 17.03.26, 16:30
HS C
Students, Academic Staff
We invite you to our colloquium by Mario Ruben, INT, IQMT, Karlsruhe Institute of Technology, Germany and ISIS, CESQ, University of Strasbourg, France.
Molecular Nuclear-Spin Qudits: Implementation of Grover's Search Algorithm and First-time Observation of Optically-detected NMR
The nuclear spin degree of freedom in rare-earth molecules will be proposed to act as quantum registers for Quantum Computing (QC) and Quantum Communication (QComm). We report on the implementation of lanthanide metal complexes into nanometre-sized spintronic devices by a combination of bottom-up self-assembly and top-down lithography techniques. The controlled generation of magnetic molecular nanostructures will be shown and persistence of their magnetic properties under confinement will be confirmed. The Hilbert space spanned by the nuclear spins will be engineered synthetically and addressed both electrically 1-11 and optically,12-14 partially at the single molecule level.1-13 Finally, Grover's quantum search algorithm will be implemented on the nuclear spin register of a 159TbPc2 Qudit10 and the observation of OD-NMR in a 151Eu(III) complex will be reported.14
References
[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. Vasiliev et al. Nature Mater. 2026, in print.
Organizers: K. Erath-Dulitz, H.-C. Nägerl, F. Marleau