Willow quantum chip demonstrates verifiable quantum advantage on hardware

Notice how they say "quantum advantage" not "supremacy" and "a (big) step toward real-world applications". So actually just another step as always. And I'm left to doubt if the classic algorithm used for comparison was properly optimised.

I skimmed the paper so might have missed something, but iiuc there is no algorithm used for comparison. They did not run some well defined algorithm on some benchmark instances, they estimated the cost of simulating the circuits "through tensor network contraction" - I quote here not to scare but because this is where my expertise runs out.

FWIW "quantum advantage" and "quantum supremacy" are synonyms, some people just prefer the former because the latter reminds them of "white supremacy" https://en.wikipedia.org/wiki/Quantum_supremacy#Criticism_of...

Good point, I had no idea. I actually thought they just restrained themselves this time :D