by Ciro Santilli (@cirosantilli, 37)
This is a good read: quantumai.google/hardware/datasheet/weber.pdf May 14, 2021. Their topology is so weird, not just a rectangle, one wonders why! You get different error rates in different qubits, it's mad.
Figure 1.
Google Sycamore Weber quantum computer connectivity graph
. Weber is a specific processor of the Sycamore family. From this we see it clearly that qubits are connected to at most 4 other qubits, and that the full topology is not just a simple rectangle.

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Sycamore processor by Wikipedia Bot 0 1970-01-01
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The Sycamore processor is a quantum computing device developed by Google as part of their quantum computing research efforts. It is known for being the first quantum computer to achieve "quantum supremacy," a term that refers to the point at which a quantum computer can perform a calculation that is infeasible for the most powerful classical supercomputers.
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