Quantum Computing Progress is Way Faster Than Classical Computers | NextBigFuture.com

IBM says they could use 250 petabytes of memory and the best supercomputer to match a 53-qubit Google quantum computer on a particular problem. Scott Aaronson notes that this clearly shows that quantum supremacy is clearly emerging. IBM paper says the 200 Petaflop Summit at Oak Ridge National Lab with its 250 petabytes of hard disk space—one could just barely store the entire quantum state vector of Google’s 53-qubit Sycamore chip in hard disks. They could then simulate the Google quantum chip solution in ~2.5 days, more-or-less just by updating the entire state vector by brute force, rather than the