Markus Hanke Posted January 15 Posted January 15 16 hours ago, studiot said: And there is a fundamental issue between GR and particle physics that no one has thus far brought up. Well, one of these issues would be that the energy-momentum tensor, being the source term in the Einstein equations, cannot be promoted (to the best of my knowledge) to a Hermitian operator in the QM sense.
studiot Posted January 16 Posted January 16 On 1/15/2025 at 5:21 AM, Markus Hanke said: Well, one of these issues would be that the energy-momentum tensor, being the source term in the Einstein equations, cannot be promoted (to the best of my knowledge) to a Hermitian operator in the QM sense. My comments only take into account the effects of rotations of not the direct effects on quantities (differential or otherwise) as projections or components. Rotations by themselves do not lead to the cross products involved.
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