Drezet, aurélien and Lazarovici, Dustin and Nabet, Bernard
(2025)
Comment on “Energy–speed relationship of quantum
particles challenges Bohmian mechanics”.
[Preprint]
This is the latest version of this item.
Abstract
In their recent paper published in Nature [DOI: 10.1103/PhysRevA.107.052201 ] Sharaglazova et al. report an optical microcavity experiment yielding an “energy-
speed relationship” for quantum particles in evanescent states, which they infer from the observed population transfer between
two coupled waveguides. The authors argue that their findings challenge the validity of Bohmian particle dynamics because,
according to the Bohmian guiding equation, the velocities in the classically forbidden region would be zero. In this note, we
explain why this claim is false and the experimental findings are in perfect agreement with Bohmian mechanics. We also clarify
why the operationally defined speeds reported in the paper are unrelated to particle velocities in the sense described by Bohmian
mechanics.
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