--- res: bibo_abstract: - Holes confined in quantum dots have gained considerable interest in the past few years due to their potential as spin qubits. Here we demonstrate two-axis control of a spin 3/2 qubit in natural Ge. The qubit is formed in a hut wire double quantum dot device. The Pauli spin blockade principle allowed us to demonstrate electric dipole spin resonance by applying a radio frequency electric field to one of the electrodes defining the double quantum dot. Coherent hole spin oscillations with Rabi frequencies reaching 140 MHz are demonstrated and dephasing times of 130 ns are measured. The reported results emphasize the potential of Ge as a platform for fast and electrically tunable hole spin qubit devices.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Hannes foaf_name: Watzinger, Hannes foaf_surname: Watzinger foaf_workInfoHomepage: http://www.librecat.org/personId=35DF8E50-F248-11E8-B48F-1D18A9856A87 - foaf_Person: foaf_givenName: Josip foaf_name: Kukucka, Josip foaf_surname: Kukucka foaf_workInfoHomepage: http://www.librecat.org/personId=3F5D8856-F248-11E8-B48F-1D18A9856A87 - foaf_Person: foaf_givenName: Lada foaf_name: Vukusic, Lada foaf_surname: Vukusic foaf_workInfoHomepage: http://www.librecat.org/personId=31E9F056-F248-11E8-B48F-1D18A9856A87 orcid: 0000-0003-2424-8636 - foaf_Person: foaf_givenName: Fei foaf_name: Gao, Fei foaf_surname: Gao - foaf_Person: foaf_givenName: Ting foaf_name: Wang, Ting foaf_surname: Wang - foaf_Person: foaf_givenName: Friedrich foaf_name: Schäffler, Friedrich foaf_surname: Schäffler - foaf_Person: foaf_givenName: Jian foaf_name: Zhang, Jian foaf_surname: Zhang - foaf_Person: foaf_givenName: Georgios foaf_name: Katsaros, Georgios foaf_surname: Katsaros foaf_workInfoHomepage: http://www.librecat.org/personId=38DB5788-F248-11E8-B48F-1D18A9856A87 orcid: 0000-0001-8342-202X bibo_doi: 10.1038/s41467-018-06418-4 bibo_issue: '3902 ' bibo_volume: 9 dct_date: 2018^xs_gYear dct_identifier: - UT:000445560800010 dct_language: eng dct_publisher: Nature Publishing Group@ dct_title: A germanium hole spin qubit@ ...