AI Designs Quantum Physics Experiments beyond What Any Human Has Conceived

AI Designs Quantum Physics Experiments beyond What Any Human Has Conceived

In 1989 three physicists—Daniel Greenberger, the late Michael Horne and Zeilinger—described an entangled state that came to be known as “GHZ” (after their initials). It involved four photons, each of which could be in a quantum superposition of, say, two states, 0 and 1 (a quantum state called a qubit). This quantum state is called a qutrit. In late 2013 the researchers spent weeks designing experiments on blackboards and doing the calculations to see if their setups could generate the required quantum states. This process makes calculating the final quantum state much easier, although it is still hard for humans to understand.

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