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Hi /sci/,
Quantum experiments suggest to us that "the act of measuring" a particle will collapse its wave function. The particle's, e.g., spin would manifest itself to either up or down with parobability indicated by the state vector in the hilbert-space.
Further experiments suggest that it is not actually the measuring device that destroys the wave function. Instead, the gain of information by an experimenter/observer causes the collapse.
My question is what counts as an observer? Surely a human being counts, but what else? I would go as far as including all higher species.
Has the delayed choice quantum ereaser experiment been made with humans acting as detectors?
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>>8979352
>My question is what counts as an observer?
It's basically any interaction with any other system.
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In order to observe something, you need to interact with it, for instance by shooting electromagnetic radiation at it. This is what "observation" actually means.
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