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Is Einstein's equivalence principle valid for a quantum particle?

Andrzej Herdegen·Jaroslaw Wawrzycki
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Abstract

Einstein's equivalence principle in classical physics is a rule stating that the effect of gravitation is locally equivalent to the acceleration of an observer. The principle determines the motion of test particles uniquely (modulo very broad general assumptions). We show that the same principle applied to a quantum particle described by a wave function on a Newtonian gravitational background determines its motion with a similar degree of uniqueness.

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Andrzej Herdegen, Jaroslaw Wawrzycki. 2003-01-30. Is Einstein's equivalence principle valid for a quantum particle?. https://doi.org/10.1103/physrevd.66.044007

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