by Ciro Santilli (@cirosantilli, 36)
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.
Video 1.
Meet Willow, our state-of-the-art quantum chip by Google Quantum AI
. Source.
2024 public presentation of their then new chip.

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