Comment on "Why interference phenomena do not capture the essence of quantum theory"

TL;DR

This paper critiques a recent claim that quantum interference can be classically reproduced, reaffirming Feynman's view that quantum interference is fundamentally non-classical and mysterious.

Contribution

It provides a critical analysis of Catani et al's classical model of quantum interference, emphasizing its limitations and defending the non-classical nature of quantum phenomena.

Findings

Identifies issues in Catani et al's classical interference model

Reinforces the uniqueness of quantum interference as a non-classical phenomenon

Supports Feynman's assertion of the fundamental mystery of quantum interference

Abstract

It was recently argued by Catani et al that it is possible to reproduce the phenomenology of quantum interference classically, by the double-slit experiment with a deterministic, local, and classical model (Quantum 7, 1119 (2023)). The stated aim of their argument is to falsify the claim made by Feynman (in his third book of Lectures on Physics) that quantum interference is ``impossible, absolutely impossible, to explain in any classical way'' and that it ``contains the only mystery'' of quantum mechanics. We here want to point out some problems with their argument.