© Interplay of Quantum Physics
A new theory of quantum mechanics presumes not only that parallel worlds exist, but also that their mutual interaction is what gives rise to all quantum effects observed in nature.
The theory, first published by Professor Bill Poirier four years ago, has recently attracted attention from the foundational physics community, leading to an invited Commentary in a top-ranking physics journal, Physical Review X.
The idea of many worlds is not new. In 1957, Hugh Everett III published what is now called the "Many Worlds" interpretation of quantum mechanics. "But in Everett's theory, the worlds are not well defined," according to Poirier, "because the underlying mathematics is that of the standard wave-based quantum theory." In contrast, in Poirier's "Many Interacting Worlds" theory, the worlds are built into the mathematics right from the start.
Does this prove anything definitive about the nature of reality? "Not yet," says Poirier. "Experimental observations are the ultimate test of any theory. So far, Many Interacting Worlds makes the same predictions as standard quantum theory, so all we can say for sure at present is that it might be correct."
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