(Replying to PARENT post)
They've gotten it a little bit bigger than a buckyball
https://arxiv.org/abs/1310.8343
Also what's cool is that these things are visible under an electron microscope (so are buckyballs iirc).
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(Replying to PARENT post)
Probably they would just explain it with the normal Copenhagen interpretation?
https://en.wikipedia.org/wiki/Copenhagen_interpretation
In terms of quantum theory, the behaviour of a quantum computer is not fundamentally any different to the behaviour of any small scale particle or collection of particles.
Even buckyballs have been shown to self-interfere in a double-slit experiment, and that doesn't _prove_ multi-worlds over the Copenhagen interpretation.
https://web.archive.org/web/20120331115055/http://www.quantu...
There might be other philosophical reasons to believe in many-worlds, and I am partial to it myself, but experimental observation of this form would not to my understanding contribute to that argument.