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Nonlinear Quantum Mechanics and Artificial Intelligence
Jonathan Oppenheim·December 8, 2025
hep-thQuantum Physics
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Abstract
We examine a criterion for relativistic covariance of nonlinear quantum field theory recently proposed by GPT-5 and published in Physics Letters B. We show that this criterion inadvertently tests a different property -- locality of the Hamiltonian -- and is insensitive to whether the theory is nonlinear. We recall the correct criterion, identified by Gisin and Polchinski thirty-five years ago, and reformulate their result in field-theoretic language.