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Quantum

Quantum

Could a conventional chair be a quantum measuring device?

30 Nov 2021
Taken from the November 2021 issue of Physics World where it first appeared under the headline "The Geiger counter and the chair".

Roberto Merlin on explaining the quantum measurement problem, and how a particle distinguishes a Geiger counter from a chair

A chair and a person contemplating it
(Courtesy: Shutterstock/Teo Tarras)
There is no doubt that something extraordinary happens when a particle interacts with a quantum meas

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Roberto Merlin is the Peter A Franken professor of physics at the University of Michigan, US
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