Bad News for Quantum Computing: Another Advantage Gone

By adopting a tensor network approach that reflects the geometry of the lattice and is approximately contracted using belief propagation, we can perform a classical simulation that is significantly more accurate and precise than the results obtained from the quantum processor and many other classical methods.

Wait a moment: how quantum computers can ever beat classical ones, once the later hit physical limits? See also:

A Moving Target for Quantum Advantage Researchers have used quantum computers to solve difficult physics problems. But claims of a quantum “advantage” must wait as ever-improving algorithms boost the performance of classical computers.

Efficient Tensor Network Simulation of IBM’s Eagle Kicked Ising Experiment