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A tunable two-dimensional crossbar array comprising 16 quantum dots

Drawing inspiration from classical semiconductor technology, a strategy to address many quantum dots through a small number of control lines is presented. The two-dimensional array consisting of 16 germanium quantum dots can be tuned in the few-hole regime with odd charge fillings and individually addressable tunnel couplings.

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Fig. 1: The crossbar array of 16 quantum dots.


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This is a summary of: Borsoi, F. et al. Shared control of a 16 semiconductor quantum dot crossbar array. Nat. Nanotechnol. (2023).

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A tunable two-dimensional crossbar array comprising 16 quantum dots. Nat. Nanotechnol. (2023).

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