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Physics

AI can work out how quantum computers stack up to one another

Comparing the properties of qubits in different quantum computers is challenging, but AI can tell them apart even when the state of the qubits is 98 per cent similar

By Karmela Padavic-Callaghan

12 May 2023

AI could help determine whether quantum computers can outpace conventional ones

Shutterstock/Gorodenkoff

AI can tell how similar two quantum states are, even using imperfect data about their properties. This could make it a useful tool for assessing how different quantum computers stack up against one another in the future.

Quantum computers process information by manipulating the states of their quantum bits, or qubits. But comparing the properties of qubits in two different quantum computers – or comparing the output of one quantum device with what it should ideally be – is …

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