Measuring quantum properties like the wave function of photons of light has allowed researchers to test the principle of least action at a quantum level Hui Yan
A centuries-old fundamental law of physics called the principle of least action has been demonstrated using quantum objects for the first time.
A physicists ultimate dream is to write the secrets of the entire universe on a small piece of paper and the principle of least action must be on the list, says at the South China Normal University. Our ambition was to see [the principle] in a quantum experiment.…



