Scientists recreate a bizarre quantum effect that stops a particle cold
University of Oxford researchers used a hybrid quantum computer to simulate the Aharonov-Bohm effect, where a particle is influenced by a magnetic field without entering it. This experiment demonstrates how quantum systems can model complex interactions that are difficult for classical computers.
Why it matters
Validating these quantum phenomena helps scientists better understand fundamental physics and improves the utility of quantum computing for complex simulations.
A particle does not have to pass through a magnetic field to be influenced by it. That surprising feature of quantum physics has now been recreated by researchers at the University of Oxford, who used a hybrid quantum computer to demonstrate how an invisible magnetic influence can bring a simulated particle's movement to a complete stop.
The experiment reproduced a phenomenon known as the Aharonov-Bohm effect, in which a charged particle traveling around a region containing magnetic flux experiences a measurable change in its quantum state, even though its path never takes it through the magnetic field itself.
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