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ORNL Researchers Advance Performance Benchmark for Quantum Computers


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Researchers at the U.S. Department of Energy's Oak Ridge National Laboratory have developed a quantum chemistry simulation benchmark to evaluate the performance of quantum devices and guide the development of applications for future quantum computers.

ORNL's Raphael Pooser says the Quantum Testbed Pathfinder project is focused on relatively simple scientific challenges that embody the kinds of problems quantum systems will help address. The researchers calculated the bound-state energy of alkali hydride molecules on 20-quantum-bit (qubit) IBM Tokyo and 16-qubit Rigetti Aspen chips, effectively testing the quantum system's performance by tuning the system as a function of a few parameters.

The work is described in "Quantum Chemistry as a Benchmark for Near-Term Quantum Computers," published in the journal npj Quantum Information.

Said Pooser, "This project helps DOE better understand what will work and what won't work as they forge ahead in their mission to realize the potential of quantum computing in solving today's biggest science and national security challenges."

From Oak Ridge National Laboratory
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