Summary
Regarding a method for deriving the particle phase-shift based on the nonspreading wave packet model with a de Broglie faster-than-light phase wave for a particle, a slight difference between nonrelativistic quantum theory and this method is shown, to the second order in the value of the particle mass, as determined by the calculation of particle phase shift due to the gravity of the Earth. This difference will be examined by advanced experiments in neutron interferometry.
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Takahashi, Y. A method for deriving particle phase shift. Nuov Cim B 103, 335–339 (1989). https://doi.org/10.1007/BF02737136
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DOI: https://doi.org/10.1007/BF02737136