many-worlds interpretation

quantum mechanics

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In quantum mechanics: Measurement in quantum mechanics
…may also mention the so-called many-worlds interpretation, proposed by Hugh Everett III in 1957, which suggests that, when a measurement is made for a system in which the wave function is a mixture of states, the universe branches into a number of noninteracting universes. Each of the possible outcomes of…
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In philosophy of physics: The theory of Ghirardi, Rimini, and Weber
According to the so-called “many worlds” hypothesis, the measurement of a particle that is in a superposition of being in region A and being in region B results in the instantaneous “branching” of the universe into two distinct, noninteracting universes, in one of which the particle is observed to…
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