Quantum CFD at QCE26 learned the price of its doors

This guide follows 23 talks on quantum computing for fluid dynamics and other differential equations at IEEE Quantum Week 2026 in Toronto. The sharpest numbers priced getting data in and out, and the solve between. On Sunday 13 September, in Room 701B, Krishnan Suresh of the University of Wisconsin-Madison gave the first talk of a day on quantum CFD, the use of quantum computers for fluid flow, with an awkward claim. The standard way to load a problem into a circuit, the default tool in IBM’s Qiskit software, throws away any quantum speed-up at the first step, Suresh said. The problems Suresh wanted to load are some of the oldest in computing. Air over a wing, heat in a turbine blade, stress in a steel beam and hot gas in a fusion reactor are all written as partial differential equations. These say how something changes from place to place and moment to moment. Computers solve such equations by cutting space into a grid and stepping forward in time. Big engineering runs use billions of grid points and tie up supercomputers, which is why an aerospace firm, national laboratories and a defence establishment sent speakers to Toronto. A quantum computer offers…