QDarts: A Quantum Dot Array Transition Simulator for finding charge transitions in the presence of finite tunnel couplings, non-constant charging energies and sensor dots
arxiv(2024)
摘要
We present QDarts, an efficient simulator for realistic charge stability
diagrams of quantum dot array (QDA) devices in equilibrium states. It allows
for pinpointing the location of concrete charge states and their transitions in
a high-dimensional voltage space (via arbitrary two-dimensional cuts through
it), and includes effects of finite tunnel coupling, non-constant charging
energy and a simulation of noisy sensor dots. These features enable close
matching of various experimental results in the literature, and the package
hence provides a flexible tool for testing QDA experiments, as well as opening
the avenue for developing new methods of device tuning.
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