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2018 Agency in the Physical World
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2008 Foundational Questions in Physics and Cosmology
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Howard Wiseman
Griffith University

Michael Hall
Griffith University


Dirk-Andre Deckert, Ludwig-Maximilians-University Munich

Project Title

How do measurement events emerge from Many Interacting Worlds?

Project Summary

Quantum mechanics is a strange theory. One the one hand, the mathematics of the theory has underpins huge amounts of modern science and technology – flash drives, computer chips, lasers, just to name a few. On the other hand, physicists do not agree on what the mathematics means. We do know that we can only make sense of the world, at small scales, if we fundamentally change our picture of reality in some way. Indeed, some physicists have seriously suggested giving up on objective reality altogether. But we prefer to follow Einstein (for example) in seeking a realistic theory. To this end, we recently suggested a radical new view of the reality behind quantum events: there is a huge but finite number of worlds; each has its own configuration of particles in space; they evolve deterministically; all quantum phenomena emerge from a subtle interaction between similar worlds; and probabilities arise from ignorance as to which specific world we actually occupy. This project will significantly develop this viewpoint, to explicitly model and explain: how measurement events are created; why their statistics obey Heisenberg’s uncertainty principle in any given world; and the seemingly “faster-than-light” effects connecting distant quantum events.

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