Summary
By simple arguments, we have shown that Károlyházy’s model overestimates the quantum uncertainty of the space-time geometry and leads to absurd physical consequences. The given model can thus not account for gradual violation of quantum coherence and cannot predict tiny experimental effects either.
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Diósi, L., Lukács, B. Károlyházy’s quantum space-time generates neutron star density in vacuum. Nuov Cim B 108, 1419–1421 (1993). https://doi.org/10.1007/BF02755193
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DOI: https://doi.org/10.1007/BF02755193