A Quantum Fluid Solver Gets an Exascale Reality Check

An Oak Ridge team ran a variational quantum linear solver for fluid dynamics end to end on the Frontier exascale machine and published the honest bill: memory costs cut over a thousandfold, circuit design rules that fail to predict convergence, and every qubit still emulated. For the discipline behind hypersonic flow simulation, it is the first production-scale accounting of what a quantum CFD pipeline actually costs.