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Reassessment of the Coincidence Results in "Experimental Test of the de Broglie Guided-Wave Theory for Photons"

Matheus Reck Dutra

Published Dec 19, 2025• 0 citations
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Abstract

Wang et al. (1991) reported in the experiment the absence of interference in coincidence counts and interpreted this result as being incompatible with a de Broglie guided-wave description. In the present comment, it is offered a careful analysis of full and empty wave propagation in the experiment. This analysis predicts the absence of coincidence interference, without contradicting guided wave models.

DOI
10.5281/zenodo.17983705

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Wang et al. (1991) reported in the experiment the absence of interference in coincidence counts and interpreted this result as being incompatible with a de Broglie guided-wave description. In the present comment, it is offered a careful analysis of full and empty wave propagation in the experiment. This analysis predicts the absence of coincidence interference, without contradicting guided wave models.
An experiment has been carried out to test a prediction of the deBroglie guided wave theory for photons. According to this theory, there exist electromagnetic waves as well as photons, with the former acting as guide for the latter. The wave not only determines the probability for the detection of a photon, but it also has an independent physical reality which can result in photodetection, As a result the guided wave theory predicts an interference effect when two photons pass through an interferometer with a particular geometry and one measures the rate of simultaneous detections by two photodetectors in coincidence as a function of optical path difference, By contrast, quantum mechanics predicts no interference under the same conditions. The experimental results clearly violate the prediction of the guided wave theory, but are in agreement with quantum mechanics.
In this paper we discuss a recent double-slit experiment where which-path information is obtained without disturbing the photons in their path to the detector, and, as a consequence, an interference pattern is observed on the far screen even if it is known which slit the photons go through. We argue that this result is in clear contradiction with a fundamental principle in orthodox quantum mechanics – Bohr’s complementarity principle – and also point out that, on the other hand, the results of this experiment are the expected ones in the framework of de Broglie’s pilot wave theory