Researchers have developed a new way to speed up quantum measurements, a vital building block for the next generation of quantum technologies.

In a paper published in National Science Review, a research team from Peking University presents new insights into magnetic field sensing. The study investigates the limits of quantum magnetometers and explores criteria for determining whether a magnetometer is essentially quantum.

This work presents an energy-efficient classical simulation algorithm using GPUs that outperforms Google's Sycamore processor in speed and energy consumption, challenging the claim of quantum computational advantage.