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Quantum information is the study of the informational content of quantum states. The most common object of study is the "qubit", the information in a two-state quantum system such as spin-1/2 or photon polarization.

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Does the observation instrument need to be conscious in order to change the interference pat... [closed]

I am an absolute amateur in physics but some questions haunt us all, don't they? In some places I hear/read that the conscious observer changes the pattern (https://youtu.be/XDpurdHKpb8?t=1559). In ot …
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