This press release is IMO missing a critical metric: how long an operation takes. If you can run the thing at 1GHz (i.e. 1 operation on a given qubit or qubit

This press release is IMO missing a critical metric: how long an operation takes. If you can run the thing at 1GHz (i.e. 1 operation on a given qubit or qubit pair per nanosecond), then this is awesome. If it’s one operation every millisecond, it’s rather less awesome. This is important for far more than the time a computation will take: it’s mandatory context for their coherence time numbers. For an actively operating computer, I don’t really care about the coherence time per se — I care how many operations I can do before the system decoheres, which affects how much error correction I need. Compare this to DRAM, which also decays (not in milliseconds unless it’s being Rowhammered, but still): the refresh process needs to be much, much faster than the decay. You can maybe squint at their “sequence fidelity” and extract some information about this.