# On "Quantum interference with slits" and its "revisited"

## TL;DR

This paper critiques Marcella's 2002 quantum treatment of slit interference, identifies fundamental errors, and proposes a corrected quantum approach that aligns qualitatively with experimental results for particles.

## Contribution

It revises Marcella's classical wave optics-based model, providing a corrected quantum mechanical analysis of slit interference that matches experimental observations.

## Key findings

- Marcella's original model was fundamentally flawed.
- A corrected quantum approach yields results consistent with experiments.
- The revised model offers a better quantum understanding of slit interference.

## Abstract

Marcella in 2002 published a "quantum-mechanical" treatment of the famous single- and double-slit interference experiment in classical wave optics by a simple assumption that quantum mechanical wave function is a constant anywhere within a slit. Rothman and Boughn in 2011 commented that Marcella introduced no quantum physics into the problem other than\ a symbol substitution $p=\hbar k$, and the used essentially the classical wave optics. In present comment, we point out that though Marcella made a fundamental mistake, the problem is nevertheless remediable to give the satisfactory quantum mechanical results which are in qualitatively agreement with experimental ones with material particles.