Jellybeans: A sweet solution for overcrowded circuitry in quantum computer chips

https://phys.org/news/2023-05-jellybeans-sweet-solution-overcrowded-circuitry.html

"elongated quantum dots between qubit pairs creating more wiring space without interrupting interaction among paired qubits silicon... 2-qubit gates..chain of electrons trapping more electrons in between qubits... 2 paired qubit electrons at each end of the jellybean can continue to talk to another. Only the electrons at each end are involved in any computations, while the electrons in the jellybean dot are there to keep them interacting while spread apart... number extra electrons pulled into quantum dot is arrangement key"

Related: Chessboard-like method enables the operation of largest gate-defined quantum dot system

https://phys.org/news/2023-08-chessboard-like-method-enables-largest-gate-defined.html