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Quantum Cognition: Neural processing with nuclear spins

May 2, 2016 - 11:00am
Matthew Fisher
Putative quantum processing with nuclear spins in the wet environment of the brain would
seemingly require fulllment of many unrealizable conditions: for example, a common biological
element with a long nuclear-spin coherence time to serve as a qubit, a mechanism for transporting
this qubit throughout the brain, a molecular scale quantum memory for storing the qubits, a
mechanism for quantum entangling multiple qubits, a chemical reaction that induces quantum
measurements on the qubits which dictates subsequent neuron ring rates, among others. My
strategy, guided by these requirements, is one of reverse engineering seeking to identify the bio-
chemical substrate and mechanisms hosting such putative quantum processing. Remarkably, a
specic neural qubit and a unique collection of ions, molecules, enzymes and neurotransmitters is
identied, illuminating an apparently single path towards nuclear spin quantum processing in the
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