Quantum Processing in the Brain?

Building a laboratory quantum computer is now a billion dollar enterprise. But might we, ourselves, be quantum computers? While maintaining quantum coherence on macroscopic time scales is exceedingly unlikely in the warm wet brain, there is one exception: Nuclear spins. My strategy is one of reverse engineering, seeking to identify the biochemical substrate and mechanisms that could host such putative nuclear spin quantum processing. Remarkably, a specific neural qubit and a unique collection of ions, molecules and enzymes can be identified, illuminating an apparently single path towards quantum processing in the brain.

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