arXiv:quant-ph/0501135quant-ph
A theory of quantum gravity based on quantum computation
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Abstract
This paper proposes a method of unifying quantum mechanics and gravity based on quantum computation. In this theory, fundamental processes are described in terms of pairwise interactions between quantum degrees of freedom. The geometry of space-time is a construct, derived from the underlying quantum information processing. The computation gives rise to a superposition of four-dimensional spacetimes, each of which obeys the Einstein-Regge equations. The theory makes explicit predictions for the back-reaction of the metric to computational `matter,' black-hole evaporation, holography, and quantum cosmology.
My favourite "wacky theory" is that Einstein general relativity can be derived from quantum computing, https://arxiv.org/abs/quant-ph/0501135. In general, I love such novel concepts (rather than slight refinements of existing). They are like seeds - the vast majority of them…
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