A5089236830- Integrated Circuits and Semiconductor Failure Analysis
- Advancements in Semiconductor Devices and Circuit Design
- Quantum and electron transport phenomena
- Quantum Computing Algorithms and Architecture
- Semiconductor Quantum Structures and Devices
- Scientific Computing and Data Management
- Semiconductor materials and devices
- Real-time simulation and control systems
- Electronic Packaging and Soldering Technologies
- Low-power high-performance VLSI design
- Quantum Information and Cryptography
- Analog and Mixed-Signal Circuit Design
- Electromagnetic Compatibility and Noise Suppression
- Power Transformer Diagnostics and Insulation
Forschungszentrum Jülich
2024
Institute of Engineering
2023-2024
In gate-defined quantum dot systems, the conductance change of electrostatically coupled sensor dots allows observation dots' charge and spin states.Therefore, must be optimally sensitive to changes in its electrostatic environment.A series measurements varying two sensor-dot-forming barrier gate voltages serve tune into a corresponding operating regime.In this paper, we analyze noise characteristics measured data define criterion identify continuous regions with sufficient...
Quantum dots must be tuned precisely to provide a suitable basis for quantum computation. A scalable platform computing can only achieved by fully automating the tuning process. One crucial step is trap appropriate number of electrons in dots, typically accomplished analyzing charge stability diagrams (CSDs). Training and testing automation algorithms require large amounts data, which either measured manually labeled an experiment or simulated. This article introduces new approach realistic...
Gate-defined quantum dots are a promising candidate system for realizing scalable, coupled qubit systems and serving as fundamental building block computers. However, present-day dot devices suffer from imperfections that must be accounted for, which hinders the characterization, tuning, operation process. Moreover, with an increasing number of qubits, relevant parameter space grows sufficiently to make heuristic control infeasible. Thus, it is imperative reliable scalable autonomous tuning...
Operating semiconductor quantum dots as bits requires isolating single electrons by adjusting gate voltages. The transitions of to and from the appear a honeycomb-like pattern in recorded charge stability diagrams (CSDs). Thus, detecting is essential tune double dot, but manual tuning seriously time-consuming. However, automation this process difficult because transitions’ contrast often low, noise background disorder potential shifts disturb CSDs. Therefore, signal-to-noise ratio needs be...