# Comments on "Scattering Cancellation-Based Cloaking for the Maxwell--Cattaneo Heat Waves"

## TL;DR

This paper critiques and corrects errors in a recent study on thermal wave cloaking, clarifying the differences between flux laws and their relation to the Maxwell--Cattaneo heat transfer theory.

## Contribution

It provides a detailed correction of mathematical and conceptual errors in the previous work and clarifies the proper application of the Maxwell--Cattaneo model.

## Key findings

- Identified errors in the previous article's mathematical derivations
- Clarified the distinction between different thermal flux laws
- Showed the chosen model does not align with Maxwell--Cattaneo theory

## Abstract

A number of errors, both mathematical and conceptual, are identified, in a recent article by Farhat \textit{et al.}\ [Phys.\ Rev.\ Appl.\ \textbf{11}, 044089 (2019)] on cloaking of thermal waves in solids, and corrected. The differences between the two thermal flux laws considered in the latter article are also critically discussed, specifically showing that the chosen model does not, in fact, correspond to the Maxwell--Cattaneo hyperbolic (wave) theory of heat transfer.