Comment on "Matter-Wave Interferometry of a Levitated Thermal Nano-Oscillator Induced and Probed by a Spin"

TL;DR

This paper critically examines a previous claim about matter-wave interferometry involving a levitated nano-oscillator, clarifying that the observed effects are not due to spatially separated state interference.

Contribution

It provides a critical analysis disputing the interpretation of interference in prior work, emphasizing the importance of correct physical explanations.

Findings

The results are not caused by interference between spatially separated states.

The formulas in the original papers are correct, but their interpretation is challenged.

Clarifies the physical mechanisms involved in the experiments.

Abstract

In this comment, we agree with the formulas derived in Refs. [1,2] but show that the results are not due to "interference between spatially separated states of the center of mass of a mesoscopic harmonic oscillator".