Sounds like it's actually implemented, as least by this quote: "In both the 50- and the 20-qubit systems, the quantum state is preserved for 90 microseconds—a r

Sounds like it's actually implemented, as least by this quote: "In both the 50- and the 20-qubit systems, the quantum state is preserved for 90 microseconds—a record for the industry, but still an extremely short period of time."