Submitted:
20 December 2023
Posted:
21 December 2023
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Abstract
Amplitudes of quantum transitions containing time zigzags are considered. The discussion is carried out in the framework of the Minkowski metric and the standard quantum mechanics without adding new postulates. We argue that time zigzags are not suppressed at the quantum level, but their contribution to the amplitude is zero. The result is valid for a single particle and a non-interacting scalar field.
Keywords:
arrow time
; path integral
; classical motion
; quantum transition
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