Definitely not a quantum expert, but I have a feeling that news like this have been happening for more than a decade, without anything usable.
replies(3):
My understanding though is that these steps are really the very beginning. Using a quantum computer with quantum algorithms to prove that it’s possible.
Once proven (which maybe article this is claiming?) the next step is actually creating a computer with enough qubits and entanglable pairs and low enough error rates that it can be used to solve larger problems at scale.
Because my current understanding with claims like these is that they are likely true, but in the tiny.
It’d be like saying “I have a new algorithm for factoring primes that is 10000x faster than the current best, but can only factor numbers up to 103.”