New interpretation of quantum physics: Many Interacting Worlds

There’s a new interpretation of quantum mechanics: Scientists propose existence and interaction of parallel worlds: Many Interacting Worlds theory challenges foundations of quantum science — ScienceDaily.

This new interpretation appears to be similar to the MWI (Many Worlds Interpretation) where quantum superpositions don’t collapse, but spread, creating what amounts to new universes.  However, in this theory, the parallel worlds already exist and interact.

The team proposes that parallel universes really exist, and that they interact. That is, rather than evolving independently, nearby worlds influence one another by a subtle force of repulsion. They show that such an interaction could explain everything that is bizarre about quantum mechanics.

…Professor Wiseman and his colleagues propose that:

  • The universe we experience is just one of a gigantic number of worlds. Some are almost identical to ours while most are very different;
  • All of these worlds are equally real, exist continuously through time, and possess precisely defined properties;
  • All quantum phenomena arise from a universal force of repulsion between ‘nearby’ (i.e. similar) worlds which tends to make them more dissimilar.

Dr Hall says the “Many-Interacting Worlds” theory may even create the extraordinary possibility of testing for the existence of other worlds.

The fact that this might be a testable theory makes it seem more scientific than the more speculative interpretations.  From the abstract, this new view would be completely deterministic, with probabilities only arising from our ignorance about which worlds we are in and interacting with.

The actual paper is here.  The abstract and “Popular Summary” are readable, but the rest quickly becomes greek for non-physicists.  Hopefully we’ll see a write up soon from Sean Carroll or one of the other blogging physicists.