These approaches are now being explored but I haven't seen any smoking guns showing a QC-based simulation exceeding the accuracy of a classical computer for a reasonable investment.
Folks have suggested other areas, such as logistics, where finding small improvements to the best approximations might give a company a small edge, and crypto-breaking, but there has been not that much progress in this area, and the approximate methods have been improving rapidly.
These approaches are now being explored but I haven't seen any smoking guns showing a QC-based simulation exceeding the accuracy of a classical computer for a reasonable investment.
Folks have suggested other areas, such as logistics, where finding small improvements to the best approximations might give a company a small edge, and crypto-breaking, but there has been not that much progress in this area, and the approximate methods have been improving rapidly.