Rolls-Royce and Classiq Collaborate on Quantum Algorithm for Computational Fluid Dynamics

Print Friendly, PDF & Email

TEL-AVIV – Oct. 18 – Quantum software company Classiq today announced it is working with Rolls-Royce to implement novel computational fluid dynamics algorithm dealing with heavy, complex numerical simulations of fluid and gas phenomena. The quantum HHL algorithm, which solves a linear set of equations, can be utilized in a hybrid classical/quantum computer implementation of CFD. The nonlinear and linear parts are solved on classical and quantum hardware, respectively, according to Classiq.

Classiq said it will provide an efficient implementation of the linear problem definition into the quantum circuit and will generate optimized circuits for the different quantum functions within the HHL algorithm. Using the Classiq platform, Rolls-Royce will develop optimized quantum circuits for the HHL algorithm, the company said.

“Classiq’s unique platform offers both optimisation and ease of use that will be essential as we seek to run more and more sophisticated CFD models”, said Leigh Lapworth, Rolls-Royce Fellow and Quantum Computing Lead. “Achieving our net zero carbon goals requires ongoing enhancements to the sophistication of design simulations that will continue to stretch the limits of classical supercomputing. The potential of quantum computers to drastically reduce simulation run-times cannot be ignored and the work we’re doing today ensures we will have the capabilities to benefit from Quantum Advantage when it arrives.”

Classiq said its platform will enable Rolls-Royce to design quantum algorithms that scale, allowing Rolls-Royce to implement hardware independent CFD algorithms. “Classiq’s powerful synthesis engine implicitly explores a vast design space of potential circuits to meet each users’ needs and provides state of the art optimization – leaving users with more resources, whether it’s time, qubits, quantum gates, or accuracies,” Classiq said. “This functional-level exploration is possible only when synthesizing circuits from functional models, an approach fundamentally different from existing quantum solution schemes.”

Quantum computers are expected to provide a calculation speedup compared to classical computers in the coming years and capability building is a key step to take in preparation for this new computing era. Rolls-Royce, with Classiq, is implementing hardware-agnostic algorithms for the quantum computers of today and tomorrow.

“We’re honored to work with Rolls-Royce on a sophisticated quantum solution to an important industrial challenge. The Classiq platform will enable Professor Lapworth’s team of experts to reach state of the art results using a novel algorithmic approach”, said Shai Lev, VP of Strategic Partnerships at Classiq.


  1. Joseph pareti says

    This is the first time i hear about qc to solve a system of linear equations. Is this a problem that qc can exponentially speed up?