> For the complete documentation index, see [llms.txt](https://anufrievroman.gitbook.io/freepaths/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://anufrievroman.gitbook.io/freepaths/readme.md).

# FreePATHS

FreePATHS is a Monte Carlo algorithm that simulates trajectories of phonons in 3D models of nanostructures containing holes or pillars of various shapes. The algorithm outputs phonon trajectories, heat fluxes, temperature maps and profiles, the thermal conductivity, scattering maps, and other information.

<figure><img src="/files/TRsk7knMtinPDkOrXFEG" alt=""><figcaption><p>Examples of FreePATHS outputs</p></figcaption></figure>

### Repositories

* FreePATHS - <https://github.com/anufrievroman/freepaths>
* Documentation - <https://github.com/anufrievroman/freepaths-docs>