Dr. Alexander Grimm
Paul Scherrer Institut (PSD/LNQ), Bosonic Quantum Information group
BioSince July 2022 Alexander is the group leader of the bosonic quantum information group after joining the Paul Scherrer Institut as a tenure-track scientist in November 2019. He obtained his PhD for research done between 2011 and 2015 in the group of Max Hofheinz at CEA Grenoble. During this time, he experimentally demonstrated that inelastic Cooper pair tunneling through a voltage-biased Josephson junction can be leveraged to create a source of antibunched microwave radiation. As part of this effort, he developed a novel fabrication method for vertical NbN-MgO-NbN Josephson junctions. From 2016 to 2019 he was part of the group of Michel Devoret at Yale University as a postdoctoral associate, working on autonomous quantum error correction (QEC) in bosonic codes. There, he performed various QEC experiments including the demonstration and operation of a ‘’Kerr-cat qubit’’, a type of bosonic qubit which is encoded into superpositions of stabilized coherent states. For his contributions to the field of quantum information processing with non-linear effects in Josephson junctions he received the 2022 Nicholas Kurti prize.