When the quantum system is observed, the specific position or situation is established and thus the superposition is disrupted. In 1961, physicist Eugene Wigner is conducting a thought experiment. He places quantum mechanics in the position of an observer where they observe themselves. When tossing a coin with a quantum coin, in the case of coins and coins, each shot will produce a certain result observed by the shooter.
According to this thought experiment, if someone is outside the room, he will not get a definite result. In other words, according to the theory, the person is put in a room in superposition of all possible results in the experiment. Therefore, the reality perceived by the person inside the room contradicts the reality perceived by the person outside.
Caslav Brukner of the University of Vienna finds a way to translate the ez Winger’s friend ÔÇŁhypothesis into the real world to prove that reality can be subjective to observers. Brukner conducts his experiment by putting two Wigners and two friends in two separate boxes where their condition is measured inside and outside.
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