Learning Coulomb Diamonds in Large Quantum Dot Arrays. (arXiv:2205.01443v1 [cond-mat.mes-hall])

Web: http://arxiv.org/abs/2205.01443

We introduce an algorithm that is able to find the facets of Coulomb diamonds
in quantum dot arrays. We simulate these arrays using the constant-interaction
model, and rely only on one-dimensional raster scans (rays) to learn a model of
the device using regularized maximum likelihood estimation. This allows us to
determine, for a given charge state of the device, which transitions exist and
what the compensated gate voltages for these are. For smaller devices the
simulator can also be used …

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