1. GigaHertz Centre, Department of Microtechnology and Nanoscience - MC2, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
2. Quantum Technology Laboratory, Department of Microtechnology and Nanoscience - MC2, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
3. Low Noise Factory AB, Nellickevägen 22, SE-41663 Gothenburg, Sweden
4. Quantum Device Physics Laboratory, Department of Microtechnology and Nanoscience - MC2, Chalmers University of Technology, SE-41296 Gothenburg, Sweden