Conservative Motion Theory – PNP VII Physical Maximality of BQP: Why Quantum Computation is the Final Computation Allowed by Nature

Kawasaki, Hideyo

Published Nov 20, 2025• 0 citations

Abstract

This paper completes the PNP series within Conservative Motion Theory (CMT). Weshow that BQP is not merely a complexity class but the physical upper bound of computationimposed by conservation laws of entropy, energy, Fredholm mass, and spectral rank.Combining PNP I–VI, we obtain:BQP is the maximal computation permitted by the laws of physics.Any attempt to extend quantum computation beyond BQP (PostBQP, QMA, #P,nonlinear quantum mechanics, superposition counting) requires superconservative operatorsthat increase Hilbert–Schmidt mass or violate entropy conservation—dynamics forbidden byCMT.Thus computability is a direct physical consequence: Nature allows exactly BQP andnothing stronger.

DOI: 10.5281/zenodo.17659017

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