Journal
PHYSICAL REVIEW APPLIED
Volume 13, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.13.054019
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Funding
- Swiss National Science Foundation the National Centre of Competence in Research (NCCR) Quantum Science & Technology (QSIT)
- European Research Council [771503]
- European Research Council (ERC) [771503] Funding Source: European Research Council (ERC)
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While quantum dots are at the forefront of quantum-device technology, the tuning of multidot systems requires a lengthy experimental process as multiple parameters need to be accurately controlled. This process becomes increasingly time-consuming and difficult to perform manually as the devices become more complex and the number of tuning parameters grows. In this work, we present a crucial step toward automated tuning of quantum-dot qubits. We introduce an algorithm driven by machine learning that uses a small number of coarse-grained measurements as its input and tunes the quantum-dot system into a preselected charge state. We train and test our algorithm on a GaAs double-quantum-dot device and we consistently arrive at the desired state or its immediate neighborhood.
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